Mine love it, it's a lot cheaper than seaweed too. I bought a garlic guard and soaked it to get them to eat it at first and now they go after it. I try to switch between romaine, spinach, and green seaweed. Oh by the way I have two tangs and a law mower blenny who love it. No mess. They will take care of it, just start small and make to throw away the remains not let it float in the tank.