I'd call that a good trade off Are you going to journal it?
Shrimp require really good water quality. And the stress of being around so many large fish can also kill them. The livestock already in your tank is
I'd get a small canister for each tank...a small Eheim Ecco or its analog would work. The tubes can easily be adapted to lilly pipes.
Has anyone tried using leaf litter as a substrate for blackworms? I'm guessing it would be a nice way to keep them fed, similar to brown paper that some