Sooo one of my fancy goldfish - a lionhead, about 2 years old - has been nose down for about a month now. I've tried fasting, peas, medicated foods and nothing seems to help. Was reading on another thread that it might be that the water's not hard enough, but the tank's GH is high (around 10dH). The tank is also buffered with crushed coral/oyster shells and the PH/KH is within normal readings.
The only thing left I can think of is that he's just got something wrong inside... the other 2 goldfish are totally fine.
I'm wondering if, at this point, I should put him out of his misery or if there is anything I can do as a last ditch attempt to save him? The last 2 days he's been nose down either in the bottom corner or next to the filter intake - it's so sad to sit here on the couch and see him like this!
Any advice is GREATLY appreciated!