 Fin rot maybe
My neon damsel has got a torn anal fin and opening & closeing his mouth rapidly, before this he did start to hide alot in rocks only coming out when i fed, he is out all the time now but this? what can i treat him in the main tank with if it is fin rot i do not have a quarantine at the mo, will melafix be alright? _________ Hardware-55G Rena Md,Filstar XP3 Filter, 200w Heater, 1xSeio 2, 1xKoralia 2, Lee's Medium Skimmer, 8x39watt T5 Fish-Yellow Tang, Coral Beauty, Midas Blenny, Clown, Chalk Goby Inverts-Snails, Hermits, Black Long Spine Sea Urchin, Blue Linika StarFish, Cleaner Shrimp, Coral Banded Shrimp, Feather Duster, Green Bubble Tip Anemone, Coral's-Green/Purple/Hairy Mushroom's, Xenia, Button, Green, Yellow Polyps, Toadstool Leather,Finger Leather, Purple tip Frogspawn.  | 
