Quote:
Originally Posted by ladyshark
It is my understanding that the blue sponge is very toxic to fish. I had one and it really blossomed and was easy to care for. Very pretty (but deadly...)
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i have had that sponge for 5 years, it has grown some, & ive aquacultered it for my local club, its not deadly to fish.. & it does color up under higher lighting..it loves high flow too...also sand dust will stop its growth for months, very easy to frag, just press it into a rock & it stays