Need help!
I have lost 2 cichlids recently and have no idea why. They are Mbunas.
Tank is cycled and has been for some time
Ammonia 0
Nitrites 0
Nitrates less than 40
pH 8.5
Hardness KH and GH are high
Temp solid at 80
15-20% water whence a week. Stress coat added each time.
Fed 2-3 times...