I would QT and do Epsom salt 1tsp/gal (Not aquarium salt) 10 day treatment along with 100% daily water changes-if you have tannins I would add them as well and cover the top with plastic veggie wrap to keep the air warm and humid for the labyrinth
I like to use a clean 1gal jug and pre-mix my treatment water so that the tannins can steep and this also help to make correct dosage and the water changes easier
I also like to use something really small for the QT so that I can float it in the heated tank-I attach it to the side of the tank so it doesn't sink with the plastic veggie wrap as the cover and the shallow water help the fish get to air without struggling so much.
Tannins can be IAL, naturally dried and fallen from the tree Oak leaf(10-12 crush/gal of treatment water), blackwater extract, decaf green tea will even work in a pinch
The Epsom salt will help reduce swelling in the duct, work as a laxative and has a mild antibacterial/fungal effect
It can take 1-4 days to see any improvement but a full 10 day treatment is recommended....chronic floaters or constipation may need Epsom salt treatment on a monthly basis
I would NOT keep them in low dose Epsom salt long term as a preventive as it could cause it to be ineffective as a treatment when needed.
Cold dry air can also cause problems for our Betta labyrinth organ and you will see symptoms like-floating, side lying, rapid breathing..generally struggling to swim and breath-especially with tank that have openings that allow lots of air above the water and open top containers that don't have filters
Last edited by Oldfishlady; 12-21-2010 at 08:59 PM.