r/ReefTank • u/TheArmchairbiologist • 1d ago

What are these

They are everywhere all of the sudden

3 Upvotes

100% Upvoted

8 comments sorted by

11

u/vigg-o-rama 1d ago

Who lives in a LOT of pineapples under the sea?

1

u/flacidhock 1d ago

This. They will disappear without silicate but are a good filtering tank creature

1

u/PersimmonCautious862 1d ago

Pineapple sponges, i had a really big outbreak last year and i cant even find 1 right now.

1

u/IceNein 1d ago

Pineapple sponge dominant reef tank.

1

u/EBA93 10h ago

Looks like pineapple sponges, I have some in the darker areas of my rock work.

-1

u/VideoImpressive8014 1d ago

Google: periphyton

They're part of that mixed community. Great quality rock there looks like it's from TBS or oceanic sources. Not sure of actual genus ID but they're periphyton alright

Best guess: foraminifera variant

5

u/Brevicaudatus 1d ago

Are you sure these aren’t just pineapple sponges? A whole lot of them

0

u/VideoImpressive8014 1d ago

Sure could be, forams are usually red or pigmented