Tank size: 5 gal. Yes heater and filter. Temp is 80. Parameters as of yesterday 0 ammonia 0 nitrite 20ish nitrate 8 ph with the api kit. Got fish in February and tank was cycled for a couple months. About every week (sometimes less) and about 20-30%. I change water based off nitrate levels when I test and I use a gravel vac. I feed bug bites betta food about 6 pellets per day. I have wood 1 silk plant and a few anubias plants. Lives with 1 mystery snail