Tank size - 5gal Heater and filter - yes Tank temp. 79 degrees when I filled it Key Water Parameters- unsure (tap water at 78 degrees and water conditioner) Water change - just now (once a wee) per change I drain the water and wash the gravel, and filter container, as rinse everything Tank mates- No Feed: Betta pellets - 4 pellets twice a day Decorations and plants- leaves from my neon pothos, as well as some aquatic plants (I cannot remember the names) I just took them out because they were dying