I am not new to this site, although I have not posted in more than one year, and have been keeping bettas for about five years. I got a new betta for my 2.5 gal tank I keep in my office. The tank was cycled and had a major water change this past Thursday. Fish was added after the water change. I also added a new plant with a rock/silicone base. Thursday and Friday were uneventful. Betta ate and was very active and exploring the tank. This morning when I got back he was sitting at the top not moving much with extremely clamped fins, discolored and with stress lines. He did not eat. I immediately did a 2 gal water change and he perked up right away, alghogh he is still not eating. For fear that something leaked out of the new plant base I took it out. I do not have a test kit at work (stupid I know) but ammonia shouldn't rise to toxic levels after only four days in a 2.5 gal, right? What went wrong? And will his fins stay clamped? He lools terrible, albeit swimming around as best he can now. The plan is to do smaller ( 40-50%) water changes the next few days and keep fingers crossed. Water will be tested daily starting tomorrow too. Any recommendations?
Thanks a lot for any help and suggestions.
What size is your tank? 2.5 gal
What temperature is your tank? 77
Does your tank have a filter? Yes
Does your tank have an air stone or other type of aeration? No
Is your tank heated? Yes
What tank mates does your betta fish live with? None
What type of food do you feed your betta fish? Hikari pellets
How often do you feed your betta fish? 2x2-3 pellets per day
How often do you perform a water change? Weekly- did a major one on Thursday ( 80%)
What percentage of the water do you change when you perform a water change? usually 50-60%
What type of additives do you add to the water when you perform a water change? prime conditioner 2-3 drops/ gal. Salt 1 tsp per 2.5 gal of new water.
Have you tested your water? If so, what are the following parameters? Not tested
How has your betta fish's appearance changed? - clamped fins, discoloration, stress lines
How has your betta fish's behavior changed? - listless at first, perked up after water change
When did you start noticing the symptoms? This morning
Have you started treating your fish? If so, how? - 80% water change
Does your fish have any history of being ill?- no
How old is your fish (approximately)? -Maybe 6-8 months? Not sure.