I purchased it after reading a bunch of stuff about how good it was supposed to work. I have to say, I've been disappointed. IMO, it's not thick enough. Because of this, you end up dosing a lot more than just the criminal anemone. Even turning off your pumps and powerheads, this stuff still gets blown around a bit. It's advertised as having something that attract the aiptasia and I'll admit that they do seem to be attracted to it. They will even stretch out towards the syringe and wrap their tentacles around it. I'm also not all that thrilled with the effects of the aiptasia that I've been successful in dosing. With Kalk paste, some die and don't come back, others seem to reappear after awhile. With the AiptasiaX, it seems to me that more reappear and reappear sooner.