My 10 gal aquarium seems to be stalling at the cycling process. I started the process about a month ago (not exactly sure what date) doing a fish-less cycle. I added fish food and let it decompose into Ammonia and got a decent start of about 1ppm. I kept adding the fish food until the kit read 2ppm and left it for a few days. Checking the water everyday, I found that the nitrite level kept reading around 0.5-1.0 ppm but the Ammonia was still stuck at 2ppm. There still appears to be no nitrate in the tank yet as the kit reads 0ppm to this day. I'm not sure what to do now. I changed the water about twice this week but nothing changed (only the nitirite went down I guess). The only thing in the tank is the substrate and a heater which keeps the water at about 80-85c. The filter is a mechanical filter with disposable cartridges.