not sure whar the name is? i bought it for the nice blue color it is or was .it broke into five or so pieces not sure what i can do sorry the pic may be that good
I dont know much about sponges but that exposing some to air at any time can be deadly to them. But not all are like that, I also think phyto feedings might be a good idea. I have never in all these years bought a sponge, as I have never looked into there care requirements first.....