Apr 19, 2021 #1 Aximiate Community Member View Badges Joined Oct 4, 2019 Messages 84 Reaction score 33 Location Gainesville Rating - 0% 0 0 0 Noticed this growing on a piece of rock towards the back of my tank, looks to be about the size of a quarter. Maybe a sponge? Any helps appreciated!
Noticed this growing on a piece of rock towards the back of my tank, looks to be about the size of a quarter. Maybe a sponge? Any helps appreciated!
Apr 19, 2021 #2 tbrown Nominated Cronie Intern - Might be failing? View Badges Reef Tank 365 Hospitality Award Rock Pool Reef Keepers My Tank Thread Joined Nov 22, 2019 Messages 48,466 Reaction score 101,480 Location Peoria, AZ Rating - 100% 2 0 0 Looks like a yellow ball sponge probably.