Sponge ID Help

[sirmixa]

I need some help from the sponge experts. I've got these 2 from a local pet store. One is white with baby feather dusters, zoas and other goodies living on one rock with it and the other is a purple one. Both are skin like the white is much tighter clinging

any tips on care would be helpful too

 

[saltyfilmfolks]

I belive it is this sponge. I cant tell if the lower is encrusting or plating.
https://reefbuilders.com/2010/12/15/blue-photo-sponge-collospongia-auris/
I would also wager the white sponge is the same sponge but was kept in much lower light.

 

[sirmixa]

Wow I think you're right, nice find. I was having trouble finding anything on those thank you. I was thinking they're the same. The white one is weird to me, it has more than a dozen baby feather dusters growing in it.

 

[saltyfilmfolks]

Wow I think you're right, nice find. I was having trouble finding anything on those thank you. I was thinking they're the same. The white one is weird to me, it has more than a dozen baby feather dusters growing in it.

that just makes it cooler. The base of my sponge was white and It had to be fragged out. So I glued it up and slowly it colored up I hate thise terms, but med light med flow. I have a pretty high nutrient tank and is kinda mature. I tried one in the first six months of this tank and it failed fast. Very little clue as to why its doing well now.