Hey there! Long time reader, first time poster! To the point... I purchased a double tail male betta from petco August 3rd that looked in good condition i.e. active, good fins and color. I put him in my 5 gallon cycled tank that already had two otos and at first he was doing fine. After about two weeks I began to notice his fins were becoming a big ragged. Gave it a closer look... didn't look like fin rot so did some research and thought it might be the powerful current from the filter pump (Eclipse hex 5g) and the powerful air pump stressing him out. I picked up some Bettafix (I already know many of you have mixed feelings about this treatment) and I modified the filter pump to disperse the water so there is way less of a current. I also added an adjustable air valve to the air pump to decrease bubbles. His fins looked better for a few days, new white spots growing in but in the last few days his fins have clamped and he doesn't have much of an appetite however his color has not changed. The rest of my tank info is in the questions below... I'm a little stumped! My first thought was ammonia but the first water test turned up 0... over a week and a half I did two water changes and another water test turned up 0.25. Should I be doing more water changes? I'm afraid at this point it may stress him out worse?
What size is your tank? 5 gallon
What temperature is your tank? constant 78 degrees
Does your tank have a filter? yes - eclipse hex 5 gallon
Does your tank have an air stone or other type of aeration? yes - topfin 5 gallon with an adjustable air valve
Is your tank heated? yes
What tank mates does your betta fish live with? 2 otos, they don't pay attention to each other
What type of food do you feed your betta fish? he's been a bit picky... was feeding him Bettamin flakes - wasnt super into them. got omega one betta buffet pellets - wasnt super into them. so far all he really likes is blood worms.
How often do you feed your betta fish? once a day
How often do you perform a water change? once a week
What percentage of the water do you change when you perform a water change? 50% weekly changes, once a month gravel vacumn (75% WC)
What type of additives do you add to the water when you perform a water change? stress coat, nutrafin cycle
Have you tested your water? If so, what are the following parameters?
Ammonia: 0.25... test water weekly ammonia never goes over 0.25
Hardness: do not have test
Alkalinity: do not have test
Symptoms and Treatment
How has your betta fish's appearance changed? ragged fins, clamped fins
How has your betta fish's behavior changed? less active, not a big appetite
When did you start noticing the symptoms? week 1/2 ago
Have you started treating your fish? If so, how? i've done two water changes (50%), adding a teaspoon of aquarium salt and one teaspoon of bettafix
Does your fish have any history of being ill? only had him a month
How old is your fish (approximately)? not sure... i would assume 6 months to 1 year?