i need some advice very quickly.i have a 9" jaguar cichlid in a 75g with 3 synodontis sp. that have lived together for the last 8 months.i noticed the jag was a little listless so i did my normal water change.i did notice a slight injury on the left side about 2" from the base of the caudal fin.it looked like a scrape he sometimes gets from the rocks.anyway,this morning when i got up,i saw the synos attacking him in his weakened condition.i immediately moved him to a quarantine tank.i noticed the scrape on his side was now a gaping hole,his right eye is slimy and clouded over,his scales are ragged and overall condition is very poor.can anybody help me and tell me what i should do.thank you.