Hi I am a beginner. I have just purchased a 3 inch blue turquoise discus. It was happy for over a month. It is the only Discus in the Aquarium. But now it is no longer eating its normal diet of blood worms, brine shrimp, or spirulina flakes and its colour is almost black. It continues to swim around in the Aquarium like normal but is clearly losing weight
Ammonia 0, Nitrite 0, Nitrate 20+. Temperature 29 C. Aquarium size 20 gallons. Can anyone advise what might be causing the Discus to not eat?
Ammonia 0, Nitrite 0, Nitrate 20+. Temperature 29 C. Aquarium size 20 gallons. Can anyone advise what might be causing the Discus to not eat?
