I recently bought a 10 gallon tank. I used my old filter so I kept my beneficial bacteria and used the water from my old tank, after a good week of cycling I added the new filter that came with the kit I let both filters run for another week. I just added my male betta and 5 neon tetras to the tank this past Monday. Since then the water is so foggy I cant see the back of the tank and it has a green tint to it. Also it has a terrible smell.
I checked the levels yesterday everything is good, but I did a 80% water change, it is not as bad but it is starting to get foggy again.
The water is kept at 77 degrees, I only have the new filter running now (but it ran a week with the old filter).
Should I have cycled the tank longer than 2 weeks?
What did I miss or do wrong?