Its just a sponge....a harmless filter feeder..
I hate to disappoint you, but you actually did put it in your tank--as in it came with your live rock. It will be relatively difficult to eradicate altogether unless you kill the entire rock, in which case you have wasted money. Beyond that, there is no need to kill it for a number or reasons--one being that these animals actually act as a small filtration source, since they eat small particles and bacteria from the water.Harmless? i didn't put it in my tank...it must die.
thanks for the info
Why would i be disappointed?I hate to disappoint you, but you actually did put it in your tank--as in it came with your live rock. It will be relatively difficult to eradicate altogether unless you kill the entire rock, in which case you have wasted money. Beyond that, there is no need to kill it for a number or reasons--one being that these animals actually act as a small filtration source, since they eat small particles and bacteria from the water.