defiantly make a water exchange twice a week. I know it sounds weird but take him (and put some of the fish tanks water in a bowl) and then take him to a vet. most will know what to do just stay calm it will be ok
i have just seen that one of my fish, a lionhead, has got a bloodlike ring around his eye, fin gone red and few scales red. i never noticed it because the rest were healthy looking and now I am so worried. I'd go to the pet shop but they gave me bad advice already and my butterfly plec died. my other 4 fish are fine. i have a filter that is on low and i was told to change the water twice a week and only take roughly 1/3 of it out and then we have water conditioner because high chlorine where i am living. please i want sound advice. i need help/
thank you!! see I would have cleaned em once a week but pet shop people across the road kept going on about the filter be the best thing and clean twice a week. thank you for your advice!