I just set up a 55 Gal, with a HOT Magnum Filter and two power heads. I used 15 gallons of cycled water from my 20 gallon tank and the rest of the water is from the tap. I used aquarium salt, amquel, biocoat, aqua plus, and easy balance. My tank looks good (Water clear) and my pleco and betta love it. But my Red Devil, Green Terror, Jack Dempsey, and Dojo Loach do not. When I put them in their new tank they swam around checking out the tank. Then they started flair their gills like they were not getting enough oxygen, then they started sitting at the bottom of the tank and slowly started to turn on their sides. What is wrong with the tank? Right now I have my fish sitting in a bucket while I'm trying to figure out what to do. (they look and act normal in the bucket) Please give any advice.