msamsonz28
Aquarium Advice Activist
I bought two small clowns on Sunday and drip acclimated them to the 10g quarantine tank. I am using a small HOB filter with a sponge that runs in the main tank. This morning the smaller one of the two was dead. I had noticed he was a little lighter in color yesterday. My water parameters are nitrite 0, nitrate 20, and ammonia .5 ppm. I did a 40% water change this morning. I can continue water change's from the main tank. Why is there ammonia present? Shouldn't the sponge filter be enough to control it? Is that what killed the fish? The larger one seems to be fine for now. Both fish ate last night. Also I didn't notice any aggression issues between the two. I'm about ready to give up.