likemike99
Member
So I have 2 tanks and in both I get quite a lot of sponge growth. In one it is a neat bright. In the other it is either white or blue. I had not purchased any sponges, they just grew on their own. My understanding buying sponge was not a good investment since they don't grow well. Well I didn't buy any but i do have some growing well. It is not growing out of control. Just not intended growth. I am not sure what to think. any thoughts?