This began back in December. I had just adopted my new puppy. You can imagine what comes next. I did not spend as much time with my fish and stopped caring for them. Last week, I remembered them and felt so bad about it. Yesterday I went to the store and got three cardinal tetras ( my existing fish: 1 dwarf gourami, and 4 neon tetras). I also bought frozen brine shrimp, easy balance, stress zyme, and new filters. When I got home, I did a 50 percent water change and washed all the decorations. Then, I did a filter change, put the aquasafe in, then put 5 mL of easybalance, followed by 10 mL of stress zyme. Then, I used fizz tabs (lowering ammonia and regulating ph). I also put two aquarium grasses in. I also do not have an airstone in the tank. I heard that If i have live plants, they provide enough oxygen. Did I do everything right? What else should I do and what products do you recommend for my situation? I am also confused as to when to add the chemicals, and how often and how much do I do the water changes.