Okay, I'm not totally knocking the stuff here but it doesn't compare to fresh "meaty" (I mean meaty, not liquid) prawns, squid, scallops, etc... If the tentacles can actually grab a piece of food rather than get whatever juices are this stuff puts into the water and quickly gets filtered out or suspends, they will be much happier IME. I think this stuff is much better suited for SPS than LPS that can take down huge pieces of "meaty" food.