Another Terrible Problem

[rlscope]

I have noticed that my Platy and Sword are getting...dimmer. They are going grey, and one of my endlers seems to be going blue, when it had it's full colours 6 months ago...what is wrong?

0 ammonia

0 nitrite

0.9 nitrate

pH 7.1





What do I do?

 

[WILDER]

Water stats are fine.
Any flicking and rubbing, or laboured breathing.
Do the fish look thin.
How many gallons is the tank.
How many fish and which type.
Also check the gills over for being pale with excess mucas or red and inflamed.