Hey everyone. Nadador has something else going on.
A few days ago I noticed black coloration in between his scales. His fins are fine, and he is acting fine too. I lowered his temperature from 84(it has been that for at least 2 months) to 82 because I thought it would be easier for the heater to reach that since it has been getting colder.
He is in a 3 gallon tank and I do 100% water changes every 3 days. But I was busy with being sick and finals and pushed it to almost 6 days :( I did check the ammonia and it was still at 0ppm. I did a 25% WC anyway.
Also, his aponogeton plants were starting to die, I took them out.
I did a water change and added aquarium salt.
What is this and what should I do about it?
Thank you guys!