freshwater corals?

the freshwater sponges would need constant feeding of extreamly tiny live foods, which u would have to breed and manage. a lot more complicated than reef tanks. i wasnt joking, you'll find space, and money. and many coral dont need that complicated of tanks to thrive, just scope out the reef forum a little :D
 
I like Baikal's sponge reefs, but other than that, I've always found most freshwater sponges too bland to be really worth the effort.
 
There are some interesting indo sponges but they will die off if not kept well, I had one once, it died then little sponges popped up here and there. I think there's an africian one too. I've also found sponges in the Sacramento river too. But I'd rather not mess with those.

One definite concensus, air is very bad for a sponge. (Don't ever let them come in contact with any kind of bubbles, bringing them out of the water, etc)
 
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