Hey sruptex how is your betta doing?
How big is his tank?
How much water changes you doing?
Did you acclimate him to the new water temperature?
I want to give you my favorite link that i think have a lot of tips.
Also i am going to give you instructions on how to acclimate your betta to the new water temperature , it is very important . You don't want to shock him with that drastic water temp difference.
http://www.bettafish.com/showthread.php?p=2340898#post2340898
There are many ways to do a 100% water change and acclimate (reintroduce) your fish back into the tank. Here is one variation:
Note the temperature of the water.
Using a plastic cup, scoop him, along with some of his water, into the cup.
Clean out the tank. Refill with water at the SAME temp. Be sure to add the correct amount of water conditioner.
Float his cup in the tank for about 15 min.
Add a SMALL amount of NEW water to the cup. (Several tablespoons, or about 1.5 ounces.)
Let his cup float for about 10 min.
If the cup starts to fill too much, remove a SMALL amount of water from the cup. Discard it.
Repeat steps 5-7, until about an hour has passed.
Gently release him into the tank.
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2. can have betta in the changing cup with about 15% of the water and keep adding small amount of the new water about every 5 min for about 5-6 times -this way you he will get used to the temperature
