Nitrite 0, Ammonia 0, Nitrate 40, pH 7.6, temp 80F.
The dead fish are removed. 16 and counting. All of the Cardinals are dead. So far only one Cory has perished, but the survivors do not look happy. The shrimp and snails don't give af.
I've done two, back-to-back 10% water changes and rolled the flow way back on the sponge.
If you have suggestions for how I might help the survivors rebound I'd be grateful. Should I medicate the aquarium? Another 10% change? Feeding?