I got a couple of lightning maroons a few weeks ago and they looked stressed badly in the bag, fins torn , sitting on bottom etc. I put them in a 10 gallon frag tank I have so the fish in display wouldn't bother them . I planned to separate them not knowing if they would fight ( still assume they are juvies) but now I had no choice but to put together in 10 gallon. they both seem to be weighted ( like a magnet) to the bottom. If I feed they swim like mad to the top to get food but then after a minute or so hover back to bottom and "plop" back to the bottom. If they don't swim for a bit they lay/fall onto their sides and I've often mistaken them for dead.... Before they flutter up slightly when they see me. I've done 2-3 five gallon water changes over the past week . Water salinity is 1.023. Sorry to be so long winded and glass is dirty but don't wanna stress any more than have to. Any ideas of what may help?