This article is about a Fishing skilling node in the main front area. For a variant found in Croesus encounter, see Dead Varrock guard (Croesus, Fishing).
Colonised Varrock guards are members of the Varrock Guard killed by Croesus and infested with fungal algae, which can be gathered from them with level 88 Fishing for regular version and level 92 for enriched fungal algae. They can occasionally turn into enriched version, which lasts for 90 seconds, or temporarily deplete. They are found in a pond in the southern part of the Croesus Front. They are functionally the same as colonised Lumbridge guards. The version found in the Croesus encounter has no requirements but gives much less experience.
Collecting fungal algae will fill fishing urns. The 'consume' option of the fury shark outfit (and other Fishing outfits) will destroy the algae as they are collected.
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