i feel what you are saying, i have a fowlr
tank, and i read alot about clean up crews and all that. But the best thing to do, is go and get what you like( but nothing that will eat your fish). Clean up crews are cheap if you compare it to fish. i have a 29gal and here is what i got 3 weeks ago
4 Astrea Snails
3 peppermint shrimp
1 skunk cleaner shrimp
3 dward red hermits
and this weekend i am getting 4 nassarius snails for my substrate.
People have different opinions on clean up crews, mine get along just fine!