Any idea what these are

[Marty.h]

Now looked in my sump at the bottom of first chamber and it's covered on the bottom with what I can describe as like blobs of jelly/eggs I can see plenty of amphipods moving around is it there eggs pictured below if not what are they there is no exaggeration probably near on 100

 

[Mattrg02]

Sponge maybe? One looks like a pineapple sponge.

 

[Marty.h]

Thanks for the reply

The bottom of the first chamber has them blobs everywhere if they sponges a bonus ill leave them if they was bad I would of sucked them out :)

 

[KJ]

Sponge maybe? One looks like a pineapple sponge.

A+ on sponge

 

[haleyf1024]

I would guess the beginning of a pineapple sponge bloom

 

[Mattrg02]

I had tons in the bottom of a filter before. Seem to like high flow and no light.

 

[Marty.h]

They are in a high flow area and it's pitch black but looking them up they are harmless so ill leave them be thanks :)