Argh! I swear my fish tank hates me
Alright, so I have a 5 Gal Fluval Chi, that I bought used and thoroughly cleaned it with vinegar and hot water, it was running fine until I added Melafix. I added Melafix for my Betta's ripped fins, and then found out it was bad for his breathing and it was creating a horrible salty/herby smell! So I put him in a temporary tank and cleaned the tank with bleach and water (1 part bleach, 15 parts water) and then also soaked everything for 24hrs in hot water. The smell finally went away! Although I had to throw out the plastic plants because they kept smelling, and I figured that is what ripped his poor fins.
Anyways, the tank has been fine for over a week but now it is smelling AGAIN!
Not as strongly, but it's still gross... wondering what might have cause this. I did a 25% water change last week, and will be doing a 50% one this weekend to see if that helps... Any ideas on what I can do?