Originally Posted by elegantlyunsophisticated
It's not filtered, just lots of real plants and regular partial changes. Everyone else is looking good in that tank today, but the thick surface of the water persists. I think I'm going to monitor everyone's activity for a while and let this whole nasty water thing sort itself out before I consider adding another girl to bring the numbers back up to 5. In other news, one of my ADFs has a fuzzy foot! D: not a good week for fishkeeping around here I guess.
You should get a sponge filter. ALso the expansion of the gills is something that happens sometimes when a betta dies. I just had a problem in my tank where I left my top up my accident and then had a long day and came back and she had jumped out :( but I then had to leave a week for a wedding and i got back and two of my girls were completely clamped up.
AQ salt will hurt the plants but the main thing is to make sure all your girls are doing ok. You should look for the perfectly healthy girl for your number 5 (although this is really late). I hope everyone else is doing well and that everything went well!