Dying Fish

[amadge206]

I have a aqua one 980 215ltr tank.It is 10 months old and fully cycled.Fish are 4 bolivian rams 2 neons(10 died) 1 rummy nose(5 died) 2 keyhole cichlids(1 died) 2 small bristlenose cats 4cory`s . They did not all die at once ,it was a couple at a time over the last week The water seems alright Amonia0 Nitrite0 nitrate25 PH 7.5 temp 79.Good filtration and air pump.

 

[RadaR]

Planted section, wrong section for thread.
What test kit are you using? Test and test again. 50% water change just to make sure. Nothing has been sprayed near the tank?

 

[WILDER]

Any symtoms to go on.