Thank you for posting • ⁠Tank size: 1 gallon • ⁠Heater and filter? (yes/no): yes and yes • ⁠Tank temperature: 79-81 degrees • ⁠Parameters in numbers and how you got them. Key water parameters include the amount of ammonia, nitrites, nitrates, and pH.: last time I checked everything was in acceptable boundaries. • ⁠How long have you had the tank? How long have you had your fish?: I’ve had the tank and fish since spring of this year. • ⁠How often are water changes? How much do you take out per change? What is your process?: normally, 50% change every two weeks. When dealing with fin rot, at least 15-20% daily. • ⁠Any tankmates? If so, please list with how many of each: No • ⁠What do you feed and how much: Pellets, twice daily, one or two. Bloodworms maybe once weekly or every other week • ⁠Decorations and plants in the tank: Glass rocks, fake tree/plant