[Michael Hoaster]

Thanks for the suggestion, Subsea! I have done a little reading on sea apples. Very interesting creatures. They don't really qualify as particulate feeders though, and that's what I need. They eat phytoplankton, and a lot of it. So rather than helping out with particulate consumption, they compete with other dissolved organic matter consumers, like sponges. I do feed phytoplankton occasionally, but sea apples need it daily, or they gradually shrink and starve to death. I cannot justify the cost of keeping them well fed, in my situation.

If I had a phyto grow out setup it might be worth it, but I don't.