What's Up With My Fish?


Joined
Apr 11, 2018
Messages
8
Reaction score
3
Country
United Kingdom
Sorry if this is a much-asked question or the answer's obvious, but I'm a newbie and the symptoms are confusing me.

I have a 750L pre-formed pond. About half of it is full of elodea canadensis. There are several marginals too. I have a Hozelock "EasyClear 3000" combined filter/fountain, which I run all year. But for the last 10 months, its UV light has failed to work, so the pond has gone very green and murky.

There are four small goldfish in the pond. They've done well for five years. But I've noticed that the smallest has developed what looks like algae over most of its body. To the naked eye, it looks green. But when I took the photos, it showed up as white in places..(Ich?) I also see from the photos that the scales look roughened. Can anyone help, please? What is this?

This particular fish also has a strange kink at the base of its tail, which dates back before the scale problem. It hasn't seemed to be a cause of stress, but I'd be interested to know what it might be.

I've done a water test :

NO3 = 0
NO2 = 0
pH = 7.5
KH = 80
GH = 120

I'm in the southern UK.

Thanks.
IMG_7955.JPG
IMG_7956.JPG
 
Joined
Jun 11, 2012
Messages
7,046
Reaction score
7,203
Location
Water Valley, Alberta
Hardiness Zone
2a
Country
Canada
Hi Mehitabel,
Two questions to start:
Has that fish been your pond for 5 years?
What are you using for water tests?
 
Ad

Advertisements

Joined
Jun 9, 2009
Messages
57
Reaction score
63
Hardiness Zone
6b
Are you able to test for ammonia? Do you ever do any water changes? That fish almost looks stunted in growth. Have you had it since it was smaller? Are it's scales usually flat? It could be age taking over, it's hard to tell from the pics.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top