I grind it up, since I got both as tablets, and then just dump some in with a spoon. I will sometimes mist the cup or container so that it sinks into the water. I also feed using some other fish foods and stuff, trying a couple different things to see what works best for my frogs. I also think it isn't a bad idea to mix up their food like you do for the adults. I am going to try some of the stinging nettle as well.