Is this turf algae? And what’s this cluster?

[Sleeping Giant]

might be Coraline algae, or you can treat the tank and see if that helps.

 

[Sleeping Giant]

Is sponge invasive? I’ve got so much of it everywhere and I like it, I just don’t want to have a sponge tank lol

it comes of easily and dies usually when exposed to air

 

[piscesgirl]

it comes of easily and dies usually when exposed to air

And I can use it in the shower Ok thank you!