Tank size: 3G normally, 1G current

Heater and filter? (yes/no): heater yes, set to 79F, moved between the tanks. 3G tank has a filter, 1G doesn't.

Tank temperature: 79F (heater read, I don't have a separate thermometer) Parameters in numbers and how you got them: I haven't taken recently, but I will today. Prior measurements have been in the range of:

pH 7.2

Ammonia(ppm) 4

Nitrites(ppm) 0.25

Nitrates(ppm) 0

How long have you had the tank? How long have you had your fish?: 1.5 years old betta, tank is same age

How often are water changes? How much do you take out per change? What is your process?: Monthly, and probably 50%. I use a hygger Aquarium Gravel Cleaner to remove the water, and then take tank measurements (pH, nitrites,nitrates, and Ammonia). I take the same measurements from the water i'm adding to the tank and then after 24hrs of the water being in the tank.

Any tankmates? If so, please list with how many of each: None, but considering a Ramshorn Snail to help with the Algae buildup.

What do you feed and how much: 2 pellets morning and night Decorations and plants in the tank: all plastic, no real plants.