I have an established 10 gallon tank and a 5 galon tank that ive just started cycling. My 10 gallon tank I cycled with Zebra Danios. I had 6 and 4 died during the cycle then the other 2 died right after the cycle. I dont want to cycle with fish again because I think it was kinda cruel of me to basically put them to thier deaths. So, ive been cycling with fish food this time. I put a table spoon of flakes in the first day and have been adding a pinch every day since. My question is, should I be doing water changes when cycling this way? Or should I just leave it alone until cycled. When I was cycling with fish I did water changes to try and keep the fish alive. But with no fish in there to keep alive I dont know whether or not to do water changes.