I started my cycle with seachem instead of DR.Tims because the LFS was out. im currently on day 9 of the cycle. im running the heater at 83 degrees to promote bacteria growth. today the ammonia has dropped it is very low if not gone by the time this gets posted. ( it was yellow but with the slightest hint of green in it) my nitrite is still very high same as my nitrates. now i have a bottle of Dr.Tims in the fridge and i would like to add some since i belive the blend of bacteria is superior to seachems. when can i add the bacteria to make sure it isnt killed by ammonia or anything else. also when should i do a water change when my nitrites are 0 and my nitrate is still high? aswell im going to assume i should do the water change before adding any fish.