Aquarium

This article is about the room. For the music track, see Aquarium (music track).

Aquarium
Release date	20 April 2015 (Update)
Level	63
Room cost	200,000 coins
Doors	4
Hotspots	5
Completion level	81
Completion cost	234,809 coins
Template links
Infobox • Talk page

The Aquarium is a room in a player-owned house where players can showcase their Fishing skill. Building an Aquarium requires level 63 Construction and 200,000 coins. The room was suggested on the forums and chosen by players in a Player Power poll. The Aquarium can only be built on the ground level, and has 4 doors. Players can only have one Aquarium at a time, but it can be removed and placed somewhere else without losing any progress. The Aquarium is one of the few updates for which a design document was made public.

A player diving in their aquarium

There are five types of hotspots available and special objects for underwater usage:

• Centrepiece wall - Scenery.
• Diving suit - An outfit that allows certain daily and weekly rewards to be collected.
• Supply - Scenery.
• Prawnbroker - Location and type of shack the Prawnbroker resides in.
• Fish-head - Scenery similar to the big fish in the Skill Hall.
• Underwater - Scenery and rewards accessible through certain diving suits.

Fish

Before purchasing prawn perks, the player will receive either a [[Prawn balls|prawn ball], prawn cracker or golden prawn cracker for every 35,000 life points worth of fish fished. The prawn balls can be opened by one player, while the crackers have to be used on another player. Both players will receive a reward. Once in a while when fishing, you will receive a golden fish egg of the type you are fishing, so long as you don't already have that egg. You can also get golden fish eggs from prawn balls or crackers, from golden prawn crackers, from the Motherlode Maw, or once from the Prawnbroker. Players may toggle the option to receive prawn balls while fishing by talking to the Prawnbroker.

A great white shark.

There are fourteen golden fish eggs to collect, and you can put the eggs in the bathysphere to make a fish appear in your aquarium. Right-clicking the bathysphere gives you the option to view your fish list showing you which fish you have found and which ones you still need. Each egg collected will let you unlock one of the fifteen prawn perks at the Prawnbroker. You can also get four more prawn perks by collecting 1, 20, 100 and 200 prawn balls. Unlocking 15 prawn perks is a requirement for the completionist cape, and collecting all 18 prawn perks is a requirement for the trimmed completionist cape.

An additional aquatic creature, the great white shark, is unlocked at the same time Sayln the Shark is purchased from the prawnbroker. Unlike the other creatures, the Great white shark is not lost when the plug is pulled.

If the aquarium is removed, any fish unlocked remain after the room is rebuilt, but all furniture will be lost.

Lvl	Fish		Eggs
20		Trout		Golden trout eggs
30		Salmon		Golden salmon eggs
35		Tuna		Golden tuna eggs
38		Rainbow fish		Golden rainbow fish eggs
40		Lobster		Golden lobster eggs
48		Leaping trout		Golden leaping trout eggs
50		Swordfish		Golden swordfish eggs
53		Lava eel		Golden lava eel eggs
58		Leaping salmon		Golden leaping salmon eggs
62		Monkfish		Golden monkfish eggs
70		Leaping sturgeon		Golden leaping sturgeon eggs
76		Shark		Golden shark eggs
85		Cavefish		Golden cavefish eggs
90		Rocktail		Golden rocktail eggs

Strategy

When you get a Golden mystery egg, save it to use on your last/hardest eggs. If, for example, you don't want to fish in the Living rock caverns, wait to open your mystery egg until all the others are collected - that will force it to be a golden rocktail egg. If you don't have a mystery egg, ask people because many players will have a stockpile of left over and essentially useless Golden Prawn Crackers.

Because you receive prawn balls based on how many life points the fish heal, you should generally catch fish that give the highest life points per hour, until you've received that egg, and then potentially move on to the next best. This table lists the 14 fish approximately in order of life points fished per hour at 99 Fishing. Using a rod with the Polishing perk can also upgrade eggs; if the player were to catch a monkfish which provided a monkfish egg, the perk would not only upgrade the monkfish to a shark, but also the golden monkfish eggs to golden shark eggs. If the new egg has already been added to the aquarium, the received egg will be destroyed.

Optimal order for the most Prawn balls		Fishing Level
Leaping sturgeon	Golden leaping sturgeon eggs	70
Leaping trout	Golden leaping trout eggs	48
Leaping salmon	Golden leaping salmon eggs	58
Monkfish	Golden monkfish eggs	62
Swordfish/Tuna	Golden swordfish/tuna eggs	50/35
Lobster	Golden lobster eggs	40
Salmon/Trout	Golden salmon/trout eggs	30/20
Shark	Golden shark eggs	76
Lava eel	Golden lava eel eggs	53
Rocktail	Golden rocktail eggs	90
Cavefish	Golden cavefish eggs	85
Rainbow fish	Golden rainbow fish eggs	38

If you are 99 Fishing, you can get 50 free Prawn balls by talking to the Prawnbroker, which should be done first as it may provide your first Golden eggs and Prawn pennies/pounds. As eggs are caught, they should be added to the aquarium and the rewarded Perks cashed in.

The recommended order of Perks is:

• 'Gain prawn balls more frequently'
• 'Gain a landmark of your choice' - Fremennik longboat decoration
• Rest of Tier 1 perks
• Tier 2 perks
• 'Prawn Pennies and Prawn Pounds last 2x as long'
• 'Greater chance of receiving Prawn Balls'
• Rest of Tier 3 perks
• Tier 4 perks
• 'Greater chance of receiving Prawn Balls'
• Rest of the perks

Decorations

Some decorations are included with the Aquarium by default and some must be obtained from prawn balls and from fishing. Before you can use new decorations you must add them to your Bathysphere by clicking on them and then clicking on the Bathysphere.

Above ground

Bathysphere

Main article: Bathysphere

Surface view of the Bathysphere

The bathysphere is an uncustomisable part of the surface level of the Aquarium. It allows the player to traverse down into the underwater portion of the Aquarium.

Centrepiece wall

	Centrepiece	Lvl	Materials	Experience	Cost
	Maps	66	1 Mahogany plank, 1 Message in a bottle	150	2,322
	Shark jaw	71	1 Mahogany plank, 1 Shark jawbone	150	2,725
	Figurehead	78	1 Mahogany plank, 1 Ship figurehead	150	1,967

Diving suit

You need a suit to enter your aquarium. Better suits let players open better decorations. The oyster hunter suit lets players open oysters, the mermaid hunter suit lets players additionally open Mermaid's purse decorations, and the Salvage hunter suit lets players additionally open Treasure chest decorations.

	Diving Suit	Lvl	Materials	Experience	Cost
	Oyster hunter suit	63	5 bronze bars, 1 fishbowl	7	7,700
	Mermaid hunter suit	72	5 bronze bars, 1 fishbowl, 1 porthole	17	8,234
	Salvage hunter suit	80	5 bronze bars, 1 fishbowl, 1 telescope lenses	17	7,753

Supply

	Decoration	Lvl	Materials	Experience	Cost
	Fishing net	64	5 Wool, Rope	6	2,753
	Twin anchors	69	5 Iron bars, Rope	54	13,163
	Bait barrel	74	4 Mahogany planks, 100 fishing bait	577	8,168

Prawnbroker

The prawnbroker lets players unlock prawn perks, which improve Fishing in a variety of ways. You can also toggle the passive prawn perks effects and prawn ball drops with the prawnbroker or through Gameplay Settings. The different types of prawnbrokers function in exactly the same way; they are only cosmetically different.

	Prawnbroker	Lvl	Materials	Experience	Cost
	Driftwood prawnbroker	63	8 Teak planks	720	5,864
	Flotsam prawnbroker	73	8 Mahogany planks	1120	15,136
	Boutique prawnbroker	81	8 Mahogany planks, 1 porthole	1130	15,670

Fish-head

	Fish	Lvl	Materials	Experience	Cost
	Mounted swordfish	65	1 Mahogany plank, 1 Raw swordfish	157.5	2,266
	Mounted shark	70	1 Mahogany plank, 1 Raw shark	157.5	2,728
	Mounted great white shark	76	1 Mahogany plank, 1 Raw great white shark	157.5	3,143

Underwater

The underwater portion of the Aquarium is uniquely different from the rest of Construction. It has its own hotspot creation tool where items are obtained from prawn balls and prawn crackers or obtained by default. Items removed using the right-click option on the aquarium construction screen are not destroyed but sent back into your pool of buildable items.

Cosmetic

Feature		Feature
Anchor decoration		Pot decorations
Cannon decoration		Rock decorations
Boot decoration		Ship bow decoration
Castle decoration		Ship stern decoration
Coral decoration		Stone head decoration

Rewardable

Decoration	Effect
Seaweed	Can be retrieved every 24 hours for 14.8 Farming experience and two Seaweed. A maximum of five can be placed.
Kelp decoration	Can be retrieved every 24 hours for 14.8 Farming experience and two Kelp. A maximum of five can be placed.
Oyster	Can be opened every 24 hours if a player has built the Oyster hunter suit or better. Each oyster gives one drop. Drops used to be out of the Prifddinas gem rock table, yet as of an update this has been changed. Uncut onyxes and spirit gems are still obtainable from Oysters but not from Prifddinas gem rocks. A maximum of five can be placed.
Mermaid's purse decoration	Can be opened every week for 20 noted mahogany or teak planks if the player has built the mermaid hunter suit or better. A maximum of three can be placed.
Treasure chest decoration	Can be opened every week for one sealed clue scroll (elite) if the player has built the salvage hunter suit. It rarely awards a sealed clue scroll (master) instead. Only one can be placed.

Experience (Landmarks)

Experience decorations increase the chance of finding golden fish eggs at certain fishing spots. They also increase the experience given at those fishing spots by 2%. The decorations do not have to be placed inside the aquarium in order to get the bonus experience; they only need to be stored in the bathysphere.

Icon	Decoration	Location
	White wolf mountain decoration	Catherby
	Vorago decoration	Living Rock Caverns
	Fremennik longboat decoration	Otto's Grotto
	Sea troll egg decoration	Piscatoris Fishing Colony
	Fishing guild decoration	Fishing Guild
	Tribal mask decoration	Shilo Village

Prawn Perks

Main article: Prawnbroker § Prawn Perks

Players can purchase Prawn Perks from the Prawnbroker by collecting golden fish eggs.

Prestige

Once the Aquarium has been filled with all fourteen fish and all perks, the Standard plug decoration can be pulled whilst in normal mode within the house. It will reset the Aquarium's caught fish but the Prawn Perks and underwater decorations will not be reset. There are warning messages to ensure that the player understands what will happen by using the plug to prestige. Only need to Pull Plug two times to get second prestige.

To remove the first plug and gain the first prestige:

1. Check Build Mode in the House Settings window
2. Click on the Bathesphere to open Aquarium Planning window
3. Scroll down on right side to Plug
4. If 'You already have a Plug in your aquarium.' window appears, go to the left map window and right click on plug icon and select 'Remove'
5. From the drop down list select the Chinchompa plug and a green square will appear on the left map, clicking anywhere within the aquarium whilst it is completely green will place the plug
6. Un-check Build Mode
7. Click on the bathysphere to enter aquarium
8. Click on Pull Plug and Confirm Prestige to remove fish and replace plug

The first prestige will give the player a Chinchompa plug. The second prestige will give the player a Stone of Jas plug. No need to Pull Plug anymore unless one wishes to remove fish. Change plugs in Build Mode only.

As of 27 April 2015, prestiging can unlock new barehand fishing animations that can be toggled from the Prawnbroker. The first prestige unlocks Silver Barehanded Fishing and the second unlocks Gold Barehanded Fishing. Although it is a skilling animation, the animation cannot be toggled from the Animations interface.

• 

  The Standard plug

• 

  The Chinchompa plug

• 

  The Stone of Jas plug

• 

  Silver Barehanded Fishing

• 

  Gold Barehanded Fishing

Achievements

• Almost as Perky as a Prawn ( 20) – Unlock all the Prawn Perks from your Aquarium.
• Perky Like a Prawn ( 25) – Gain all possible Prawn Perk Points for your Aquarium.
• Wen Mah Aquarium Jas Got A Bik Too Ful ( 30) – Place a Stone of Jas plug in your aquarium.

Gallery

• 

  Concept art of fish that are in the aquarium

• 

  Concept art of the aquarium from a design document

• 

  Concept art of the aquarium

Update history

This information has been compiled as part of the update history project. Some updates may not be included—see here for how to help out!

• patch 10 August 2020 (Update):
  • Players can now place objects into the Aquarium Planning interface on mobile.

• patch 27 January 2020 (Update):
  • Previously, there was an issue where players who lost their eggs would not be able to prestige their aquarium. Those who have experienced this bug will find the fish in their tank and do not need to reacquire the fish egg.
    • Fixed an issue where players could lose POH aquarium eggs and not be able to prestige the aquarium.
    • POH aquarium eggs will no longer be lost on death.

• patch 17 June 2019 (Update):.
  • You can now fish at Mort Myre Swamp without bait if you have the baitless fishing perk active.

• coldfix 5 December 2017 (Update):
  • Aquarium and treasure room hotspots now have a left-click build option.

• patch 20 July 2015 (Update):
  • Players who have all of the Aquarium's decorations but haven't placed them in the Aquarium and are trying to claim their free landmark perk will now be able to spend their outstanding prawn points correctly.

• patch 26 May 2015 (Update):
  • The Prawnbroker Featherless Fishing perk will now only allow one type of feather to be overridden at a time, to prevent unwanted extra clicks when fly-fishing. This can be toggled at the Prawnbroker.

• patch 5 May 2015 (Update):
  • Aquarium perks will now work correctly with fishing auras and scrimshaws.
  • The Featherless fishing perk now works in Dungeoneering.

• patch 27 April 2015 (Update):
  • A list has been added to the aquarium bathysphere to allow players to track their fish eggs and prawnball count.
  • Players who have reset their aquarium with a plug can now visit the prawnbroker to activate an animation override for bare-handed fishing. Resetting once will unlock silver-coloured fish and resetting twice will give gold-coloured fish when catching them bare-handed. This affects tuna, swordfish, shark and great white shark. Baron sharks are not affected.
  • Bare-handed catching the above fish will now use an updated model (introduced with the aquarium), with the default colours when they are caught.
  • Certain prawn ball items have been made tradeable on the Grand Exchange, and can now be sold to shops.
  • The following items are now stackable in the player's inventory. Previously noted versions now have a "convert" option to switch them to the regular stackable version:
    • Telescope lenses
    • Porthole
    • Message in a bottle
    • Shark jawbone
    • Ship figurehead
  • Players can now earn a golden mystery egg from the Motherlode maw.
  • Ironman players can now use regular and golden prawn crackers on the prawnbroker in their Player-Owned House to open the crackers and earn the reward inside.
  • Signs of the porter will now correctly transport raw great white sharks to the bank while fishing.
  • The message displayed after earning a prawn perk via catching prawn balls has been changed to yellow so it stands out.
  • The message that appears when running out of charges from a prawn penny or prawn pound is now red and no longer spam-filtered to make it more noticeable when fishing.
  • Butlers can no longer get stuck inside an aquarium.
  • Catching a great white shark will now contribute towards earning your next prawn ball.
  • Opening an oyster inside an aquarium no longer displays a message about opening a purse.
  • The driftwood prawnbroker no longer appears twice in the Construction skill guide.
  • A typo previously displayed when opening a prawn ball has been fixed.
  • A typo previously displayed in the aquarium when harvesting seaweed has been fixed.

• update 20 April 2015 (Update):
  • Added to game.

Trivia

• On 27 April 2015, an update was added that allowed for Aquarium decorations to stack in your inventory. Players who already had several of the same item already in their inventory had each item stacked individually.
• In the same update, bare-handed fishing animations were graphically updated, to reflect the fish seen in Aquariums.
• Aquariums were a largely player driven update. Mod Osborne gave credit to a number of players who helped the development process.
• The Aquarium can sustain freshwater, saltwater, and lava fish at the same time. Some fish like salmon and trout are euryhaline fish, meaning they are able to live in both fresh and salt water.
• The examine on the Bathysphere "A rapturous construction." is a reference to the underwater city of Rapture which is first reached by bathysphere in the video game series BioShock.
• Even though the bathysphere supposedly lowers through the ground floor into the aquarium below, the aquarium cannot be seen while on the dungeon level and a dungeon room can be built directly under the bathysphere.
• Attempting to use the max cape teleport to leave the Bathysphere will give the player a warning message stating 'You must be of human shape to use this teleport'.
• When the player chooses to 'Operate' the Bathysphere while in house building mode, the chat message which appears contains a spelling mistake. The message reads: "While in build mode, you can altar the layout of your aquarium. Exit build mode to see the results." This has since been fixed.
• The castle decoration's examine text refers to a "Mobilising Armies" castle, even though that mini-game was removed with The Alchemical Onyx Update.