I am keeping three platies three Cory cats a beta fish and 2 nerite snails they seem to be healthy they are eating my betta does glass surf a lot and the platies will sometimes swim frantically and act strange but I think it is because recently I had to treat with irythromycin and it killed my cycle I am still pretty new so I don’t have a quarantine tank yet but besides that they seem healthy and the sick fish is acting well again. I will let my tapwater age for a day and then test it but I have tested my tank water pH for like three days now and I haven’t seen any big fluctuations. Also my cycle is pretty much established again.