rapid breathing, timidity

[bbruda]

Hi, first of all sorry for my english :oops:

Water Parameters - ph-6.8, KH-4, GH-8, temp 28C, NO2-0, NO3-15
Age of fish - I do not know the size of about 7-8cm, 7 pieces
Tank size - 300L (120x50x50cm)
Symptoms - rapid breathing, timidity
Eating or not - fish eat little but with care and

http://www.youtube.com/watch?v=0bscxh14yTY
This is a link to the study of gills under a microscope. It seems to me that since you can see Oodinium 3min. But I'm not sure.

Please advice.

[ILLUSN]

I can't see any white spot in there I also don't seeany flukes just the odd rod shaped bacteria fast breathing could be a result of low oxygen do they breath faster at night when your plants consume oxygen. Also what's your ammonia and no2 levels both can cause rapid breathing from gill damage

[bbruda]

I have installed additional aeration but do not know the level of NH3, buy a test and take a look, thanks.