Sick Angel!

[2ManyHobbies]

I have a 55 gallon planted tank, about 6 weeks old. Already cycled. pH=6.8, KH=7, GH=6, nitrates=5 ppm, ammonia & nitrite=0 ppm, 110 watt lights, temp=74

Bought four angels about 2 weeks ago, very healthy. One of them has become very listless and gasping for air. No other outward signs of disease except for stringy gray poop. I feed them flake every day though I did feed them a bit of blood worms about 4 days ago. All other fish very healthy. Ideas?

I also have 6 otocynclus, 3 siamese algae eaters and 4 guppies. (that I used to cylce the tank -in addition to water and old filter from other, well established aquarium)

[NJ Devils Fan]

Well, when I had angels a few weeks ago, they did the same thing, then they couldn't swim right and would let their body tumble around in the current, and in a day or 2 they were dead. I hope that doesn't happen to you.

[valerie]

what are your ammonia,nitrite,nitrate readings? Is the angel still eating?Stringy poop is usually associated with internal parasites.if she is still eating try medicated flakes

[rockhead44]

I would like to help.Do have a picture of the fish.It sounds like maybe a internal parasite .Here is a site you might want to check out it has pictures http://www.2cah.com/pandora/Disease.html#External .It is sometimes hard to figure these things out,oneday a fish is happy swiming around and the next day its not.It could be anything,sometimes the fish has a dorment disease that is trigger by something.Sometimes its just old age?Maybe someone else can add to this post.Good luck.

[famman]

Angels are prone to a virus like infection that matches your symptoms. I had 6 angels die one after another. If you don't have snails I've heard it can sometimes be treated with copper sulfate like Had-a-Snail and antibiotics. I understand clout can also work.
I suggest immediately isolating the sick fish and treating both tanks with copper sulfate and the q-tank with clout.
good luck
:)