Feb 25, 2014 #1 S s_miller801 Aquarium Advice Apprentice Joined Feb 24, 2014 Messages 35 ]Does anyone know what this is. It's in a 55 gallon reef tank with a sump filter.
Feb 25, 2014 #2 Dav3 Aquarium Advice Addict Joined Jul 22, 2012 Messages 1,233 Location California Sponge.
Feb 25, 2014 #3 OP OP S s_miller801 Aquarium Advice Apprentice Joined Feb 24, 2014 Messages 35 Is it good stuff?
Feb 25, 2014 #4 Dav3 Aquarium Advice Addict Joined Jul 22, 2012 Messages 1,233 Location California Sponge is a harmless filter feeder. It's not bad unless it is over growing corals. It's on underside of rock so you won't have any problems.
Sponge is a harmless filter feeder. It's not bad unless it is over growing corals. It's on underside of rock so you won't have any problems.
Feb 25, 2014 #5 OP OP S s_miller801 Aquarium Advice Apprentice Joined Feb 24, 2014 Messages 35 Cool thanks.