Possible Sick Fishy? Please Help!

[BeckyFish527]

I've had my 2 Black Moors since the end of September. I just recently upgraded my tank about 2, 3 weeks ago from a 10 gallon to a 20 gallon high tank. I have a 20 gallon filter and an air pump in the tank. Now my problem is that I have noticed my one fish acting strange. She doesn't necessarily act strange, she swims strange. She's very energetic and swims around like a healthy fish, but I've noticed a few things. She seems to float up to the top of the tank fairly quickly, almost like she can't stay down at the bottom. She doesn't swim sideways or lay at the bottom, she just tends to float towards the top more often. She swims normally otherwise, but when she tries to swim down her backside is almost straight up in the air. It might not be a big deal but I just wanted some information on what this might be. Let me know if you know anything about this

Thanks!

 

[SJ2K]

Sounds like a swim bladder issue, might want to put this up in the emergencies section