Hi everyone, My husband and I are newbies. We purchased our first tank and fish about 1 month ago. At the pet store we were told that danios are a good cycling fish so we purchased 6 along with 3 cory catfish for our 10 gallon tank. Last week we added an apple snail. In the first couple of weeks of the tank, I think we overfed the fish (2 x per day) and I think this has created issues with the water. Nitrite levels were way up but nitrate levels were low and from what I have read about cycling, this is to be expected until the nitrate levels rise enough to counteract the nitrite levels. Recommendations I read were that we should do 25% water changes, and we have been doing them every other day. Now nitrates levels are going up, but nitrites are not coming down. Today Nitrates are 80, nitrites are above 10.0, water pH is 7.0. I think there may be some residual food particles imbedded in the gravel which could be adding to the problem? Should we clean the gravel? Should I keep doing the 25% water changes daily and just wait?? Thanks in advance!!