Crusoe has been acting strange. I have had him for about 2 weeks and he was very healthy when I took him home. He was even making a bubble nest on his first night and had no problem adjusting to his new 5 gallon home. His Elite brand heater and Tom Mini sponge filter arrived in the mail and I rinsed them and placed them into the tank. Although Crusoe flared at the filter for a long time, I figured once he got used to it there would be no problems.
However, over the next few days he has begun acting sick. The filter has been in his tank for about 3 days now. He began to swim strange, with sudden turns. He retained his appetite and acted mostly the same but was less interactive. His pectoral fins began to appear clamped and by yesterday his anal, dorsal, and tail have all clamped. He began hiding in his log and not coming out, even if the lid was opened. He stopped going after his food, although he will attempt to eat. His food won't stay in his mouth any more and he won't even make an effort to go after it as of now.
How he is now:
I bought a QT and placed him inside. I don't know how large it is in terms of gallons but it is a small Kritter Keeper. I have placed fresh, conditioned, water in and nothing else. He has only a thermometer to watch the temperature and a light on top. He is very lethargic and will sometimes stop swimming. He is still willing to move on his own on occasion and flare at his reflection. I have taken a video, please view and give me your opinion.
His current water temperature is 75 degrees F but I am raising it. He has been moving around a little bit more since the video was taken but is mostly acting the same. Please help.