So I put some in a glass tray in my main tank, and that was a failure. I mean, all the fish love it but it was turned into a huge mess when gouramis and a swarm of embers attacked it. The intended targets, ottos and pygmies, hover around and eat the leftovers that land on nearby plants and rocks, so they are getting some at least, but the jelly still didnt add enough consistency. Putting it in a glass container helps keep most of the mess in one place though, there is that at least. In the other tank with the sewelias its mixxed results. Its still a cubelike shape but its slowly desintegrating. The sewelias havent eaten from the cube itself, but they eat around it, small bits that fall off. They keep chasing eachother away though so no real 'this is the solution'. I've got another batch prepped in which I used even more agar agar to see if that helps keeping it together more. I'll test that in a few days and update here.