Well life is the for the adventerous, , and I always make sure that I can provide for an an animal
Well it's alittle late now, to find out the difficulty, since you already purchased the sponge. I just want to point out that part of being a responsible, successful hobbiest is not buying animals that are doomed in aquariums and contribute to natural reef destruction. That was my point. I'm not trying to be abrasive, just making a point for your and your tanks/animals sake. AFAIK and have seen all sponges are difficult and require target feeding of plankton(phyto and zoo) a few times a week. Except for those that sometimes hitchhike in on LR and
survive. Hopefully Melosu can give you some info.