Any idea what this larvae might be that I found

[tjtax]

attached to my heater suction cup? The heater is in the back portion of Aquatop AIO 40 gallon tank. There appears to be a lot more of these larvae in the back section of my tank.

 

[Chrisv.]

Are you sure that isn't a pineapple sponge?

 

[AydenLincoln]

Not larvae it’s pineapple sponges which are harmless filter feeders.

 

[tjtax]

Are you sure that isn't a pineapple sponge?

Looks like it. Thank you!