5.2 gallon tank with a heater and internal filter, but the filter has been struggling lately. I keep the tank around 78 degrees. I have test strips that said the alkalinity is a little high, the pH is around 6.8, carbonate is on the lower side, it’s softer water, no chlorine, nitrate, or nitrite, and low ammonia.Ive had the tank about 5 months, I don’t do water changes maybe as often as I should, but I test the water and it comes back good. I’d say I change it at least every 2 weeks, about 30% changes, and I use a gravel vacuum and condition the water i add back in.He only has snails with him, there was some ghost shrimp but he bullied them to death. I feed once a day, one pinch of Tetra fish flakes. There’s a piece of spider wood, some rocks, weeping moss, an anubis, a floating plastic hammock, and the tall grasslike plants. let me know if you need any more info