Blueish sponge?

[Jtpotter27]

Does anyone know what this is and if it’s reed safe? It’s multiplied into little blobs on my LR.

 

[sp1187]

sponge. safe.

 

[Jtpotter27]

sponge. safe.

Thank You! Do you happen to know what kind?

 

[sp1187]

I don't. but I am envious.

 

[saltyhog]

I have the same kind in my tank in addition to a brighter yellow one and an almost white one. Their numbers and size ebb and flow normally but since I've been dosing silicates they are stable to growing.