Fin Rot?

[orangefish]

Ok thanks, I will keep you updated!

 

[Tokis-Phoenix]

Cool, good luck !

 

[orangefish]

Have been doing the daily 15% water changes still. Carried out another test today, but the results are pretty much the same
pH: 7.4
Nitrite: 1.0
Nitrate: 7.5
Ammonia: 1.0
Do I continue doing the water changes? I've also noticed that my all my harlequins are shoaling unusally low at the bottom of the tank, i've never noticed this before?
And unfortunately, I found my platy that's been ill for ages dead today She's done well to last this long tho to be honest. Thanks

 

[Tokis-Phoenix]

Oh yes definitely carrying on doing the water changes- any ammonia or nitrites above 0 are bad.

The filtration may not be adequate for the amount of fish in the tank and adding another filter to the tank to run alongside the current one may help resolve the water quality problems unless you are willing to rehome some of the fish.