Ok this sunday it will be two weeks of cycling my tank. 2 saturdays ago I setup my tank I put the water in let the sand settle & then turn the filter on that next day I went to buy a heater & 5 danio went home hook up heater let the temp set and then I put the danios in after that I did a water change on both my 30 & 10 gal first I did the 30 took the old filter cartridge out dip it in the old water a little bit & then I put it in the new filter (aqua clear 70) the same with the 10 gal it was time to change the second stage in my aqua clear mini so I took it out & put it in also along with some gravel in a mesh bag & I stuck a piece of filter floss in back of my heater from my corner filter. Three day later I test my water 0 ammonia 0 nitrite did'nt check nitrate. Another 3 days pass 0 ammonia 0 nitrite still did'nt check 4 nitrate. So yesterday I tested & 0 ammonia 0 nitrite & the nitrate was between 5.0 to 10. So do you think my tank is cycled yet? thank