Alright so one of my tanks almost crashed yesterday after adding 2 new fish so much so that i had to do a 75% water change take out all the gravel syphin the massive amounts of poo out of the tank clean the gravel and change the filter cartridge which almost failed on me yesterday haha yesterday was not a good day for fish...regardless i'm having a spike in ammonia nitrate and nitrite should i just be doing 50% water changes each day until the cycle re-establishes itself?