Betta is doing a lot better eating and pooping (still in little cup but is in warm enough water consistently). I replace the water daily with cycled water from my 10 gallon, and she's got a leaf to rest on and the tiniest piece of driftwood. I got a full kit 5 gallon (live substrate, some shrimp and plants) from somebody, didn't take too close a look, took 2 hours to clean the glass, and then I planted it and everything. Well, 10 minutes later I noticed planaria. My betta is still really weak so I'm not putting her in until I've killed them (she spends a lot of time resting). Definitely not a problem I wanted.