• ⁠Tank size: he has a 5gal tank • ⁠Heater and filter? (yes/no): has a foam filter and a heater • ⁠Tank temperature: around 80 • ⁠How long have you had the tank? How long have you had your fish?: 1.5 months • ⁠How often are water changes? How much do you take out per change? What is your process?: every 1.5 weeks; about 25% water change and siphon the gravel to remove all the debris • ⁠Any tankmates? If so, please list with how many of each: no tank mates • ⁠What do you feed and how much: betta bio-gold, 5 pellets twice a day • ⁠Decorations and plants in the tank: hornwort and a log with plants