I have another plec (The Dude) thats the same as him but bigger and he's too lazy to cause any problems, he can give him a nudge now and then but I couldn't believe this would be his work. And he is in perfect health, they eat nutrafin tropical fish flakes, some bloodworm pellets and nutrient pellets that I bought from the local fish shop (they come on clear bags so I cant tell you much more than that, sorry)
I've never lost a fish in this manner and he does look a bit thinner than normal but he's always had a much bigger head than normal proportions, its the way he grows I think. (He's grown quite alot recently)
@Tokis-Phoenix - OF COURSE i feed my fish - why on Earth would you think I wouldnt?!?!?! I'm sorry but I dont understand why you asked if I feed my fish anything at all? Implying I dont care for my fish is a bit redundant in a thread where I'm asking for help to cure him! Anyways I appreciate you sharing your knowledge with me about Pimafix and I'll ask about it tomorrow.
I'll be first to admit Im not up to all the technical stuff about fish I know how to do the general maintenance an aquarium of fish requires but I come to you asking for help because this one is beyond me and I want to learn all I can to try to help him - so thanks again for all your time in replying to my post. I've kept fish for over 10 years (since I was 13) this is the worst thing I've seen. However, he's looking alot better today, the white on his back has retreated and he's swimming upright round the bottom of the tank, I've seen him take at least 5 spurts which is more than normal for him. Couldnt get a spare tank today but I have an hour to play with tomorrow so I'll be heading into the big pet store in Aberdeen.
septiceamia and TB both seem right from what Im reading of the symtoms - I'll do a bit more research tonight. The tank is actually due for a change of water but I wasnt keen on putting the Janitor (my plec) through the distress. Would I be better to change it to clean up the water?
His anus looks normal and I've not seen him go to the toilet recently, I'll try the potato but wont the starch get into the water and cause problems? How do I feed him a slice, just place beside him? How long can I leave it in there?
No other fish have ever had these symptoms.
Truly, thank you all for your time! I appreciate it.