well, my kelquiti likes to play in it, he'll get a mouthful, and swim up and drop it, its kinda funny, ill see if I can get a youtube video and post it. But ya my female mono tries to eat it all the time.
Very nice!! My cichla pretty much get a salt bath every water change. I have well water and the its connected to my water softener! So far I have yet to have any issues. Even my geos love it!!