After using the search bar to no avail. I have decided to post, hoping someone could shine some light before the worst happens. I have had my little GSP for a while. Lets say 3 weeks now. He/she is very active but shy. Flash forward to 3 days ago. He was slowly starting to become less active. Today is worse, he is like a log. Just sleeps at the bottom of the tank or on top of whatever. I have had some other GSP's in past. So I kinda of have an idea of what they need. My tank is a 60gal Fluval substrate, generously planted with swords, creeps, tiger louts, foxtails, onion, you get the picture. My filtration is a 120gal canister filter(i clean every 1 mo with new charcoal), another Fluval EBI 15gal filter i use more for flow than cleaning, 200w heater set at a steady 80deg. My tank parameters are as follows, H/ph 7.6, NO2 0ppm, NH3/NH4 0ppm, NO3 80ppm sg. 1.010. I recently changed the water. Did about a 20%water change yesterday to be exact. And those measurements were taken after the waterchange. The other GSP is a 6-7" and he is doing just fine. When the lights are OFF. But i am worried about the littler one. he's about 3-4 inches long. I have been searching all of yahoo.com and google.com have to offer. But most of that stuff is all repeat. I hope someone can help soon. I would hate to loose this little guy.