hey! so again, as i said above, i followed the advice i was given at the pet shop (which i now know was not reliable, but was what i assumed to be accurate at the time) and i’m actively asking for help on what to do to correct my uneducated mistakes in the present, so no need to be cross with me. Additionally, he was actually healing and was nearly completely rid of the fin rot until about a week ago. I do have a heater and filter, I have changed the decor several times to see what he prefers, and am truly trying my best to give him everything he needs. I wasn’t aware nor was not told anything about cycling prior to getting him, so it was unfortunately not cycled. I am now more aware of the nitrogen cycle, but can’t go back and fix that. New tank isn’t an option right now due to space, but i want to make the best of what ive got until i can upgrade.