My clown fish has seemed to loss the black on his top fin.

[susie77]

Hi there,

I have a nano tank with two clown fish, they have seemed to be doing fine although I have only had them a few months. THey seem happy enough fins up and they are eating well. My only concern is that one of them, the larger of the two has lost the black from her top fin, it doesn't appear torn or ragged. Should this be a cause for concern, is that how fin rot starts?

Hopefully someone can advice me as to whether this is fine or whether i need to treat this.

Many thanks

Susie

[leebca]

You don't mention the size of the tank. "Nano tanks" come in all sorts of sizes. If this tank isn't at least 29 gallons, then it really isn't suitable for a pair of Anemonefishes.

"Eating well" doesn't mean 'eating right.' The loss of markings and color is usually from getting a diet that is lacking in nutrients they need. It also has to do with stress. For instance, a combo of lack of space and poor nutrition would be two stressors working on the fish.

Don't assume it isn't this. All fish have their 'limits' or 'thresholds' for what kinds of stress they can handle -- even fish of the same species. ;)