I had my Jd in a 125 gal tank with two others when he started getting fungus I quickly moved him to my hospital tank which at the time was a blue 20 gal sterilite tub. He has been in it for about a month now and I can't find anymore fungus.a week ago I put him back in with the other two JDs and by morning he was just laying behind a rock lathargic and rocking side to side. I tested the water all was well and then moved him back to the hospital tank. About an hour later he was acting fine I thought I'd let him stay the night in there and then I'd put him back in his tank. I put him back in the 125 and he was being wierd so thought maybe he would get over it yesterday I was sure he was on the way out so I swaped him back to the hospital tank. Today he looks great and seems happy. Is he just messing with me? I have no problem leaving him in the tub but its only 20 gal. hes about 5 inches. Any ideas?