Apr 26, 2020 #1 Brandon Smith AquaticArsenal.com View Badges Hospitality Award My Tank Thread Joined Aug 14, 2017 Messages 1,302 Reaction score 8,403 Location Greenville, SC Rating - 0% 0 0 0 I have these whitish looking things growing in my sump, mainly on the side of my protein skimmer. Can someone help me identify them please?
I have these whitish looking things growing in my sump, mainly on the side of my protein skimmer. Can someone help me identify them please?
Apr 26, 2020 #2 kchristensen8064 Well-Known Member View Badges Joined Jan 19, 2013 Messages 735 Reaction score 726 Location Fort Collins, CO Rating - 100% 1 0 0 Looks like pineapple sponges. Harmless filter feeders. They will come and go.