laddy
Active Member
This is a prime situation where in this hobby there are many ways to accomplish the same thing. I really don't believe you'll do any harm in changing water mid-cycle, however, what you will be doing is lowering amonia levels and prolonging the cycling of your tank. I don't believe there's anything advantageous in doing water changes when you're attempting to promote an elevated amonia and nitrite level. As for a 50-75% water change that's not uncommon at the end of the cycle.