I just purchased this Dalmatian Molly a few days ago from a local pet Co. It is not well and I don’t know if he will recover. I have done frequent water changes once a day for three days and added prime to help with the ammonia level. I also have an angel fish, pleco, two loaches, 2 cherry barbs, two tetras and four neons in a 20 gallon tank. Alll others are thriving. Should I get rid of this dalmatian or will he recover?