Ive had a pair of clownfish for about 4mo. I noticed they were getting really skinny even tho there were eating and bellies looked full. I did see some stringy white poop so I suspected internal parasites. Started treating with Metro with Focus and treated as directed. On the sixth day one of them doesnt look like its going to make it. Could it be the metro? Could it be the parasites? Should I keep treating the other clownfish? Any one have a similar experience? Any info or advice would be appreciated. TIA