A family member had a betta living in a bowl that looks to be .5 gallons. The water was extremely foul and the betta appears to have a couple of ammonia burns on its head and body. They no longer wanted the betta and asked if I could care for it and of course, I took it in. However, I wasn't properly equipped to care for a betta. I have a planted 10-gallon tank that I was setting up so I could put cherry shrimp in it. This tank has no heater, (the water temp is 75F but the temperature will fluctuate eventually) no lid, medium-strong flow, and high lighting. All of which is not ideal for a betta. This tank has been up and running for about 2 months now, I've been dosing Bacter AE (to promote biofilm for the shrimp I was going to add) and plant fertilizer. I don't have a dedicated betta food, the only suitable food I have in my stockpile is Repashy community plus. I have no way of telling if this tank is properly cycled because I don't own a test kit since I wasn't planning on adding any livestock until my plants fully grown out. My question is: Will this betta be okay living in this setup, or should I rehome it as soon as I can? Are there any plant and shrimp safe options I can use to treat this betta's ammonia burns? Also, I don't know a whole lot about bettas because they're not something I normally keep. I will be doing more research online to figure out how to properly take care of this betta but are there any important tips you could give me on keeping a betta that I might not find in a care guide?