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 Article Contributor Hospitality Award Rock Pool Reef Keepers My Tank Thread Joined Nov 22, 2019 Messages 58,985 Reaction score 144,770 Location Peoria, AZ Rating - 100% 2 0 0 Looks like a yellow ball sponge probably.