What size is your tank? 17l (google says it's 4.5 US gallons)
What temperature is your tank? 82.4
Does your tank have a filter? yes
Does your tank have an air stone or other type of aeration? from the filter
Is your tank heated? yes
What tank mates does your betta fish live with? none...
Lately, I've been noticing that the base of my female CT's tail is loosing color. It just seems to be getting see-through right where the tail comes out from her body. She lives in a 1.5 gallon tank that is filtered, but I will be upgrading her to a 5 gallon soon. I do a 50% water change and...