I made an amateur mistake the other day and rinsed my filter sponge in tap water . Now my ammonia levels are elevated (less than 0.5 ppm). I was at 0 ppm prior. I've been doing 50% water changes every day, using Seachem Prime and Stability. How long should I expect for the BB to recover? 7 days? And since Prime detoxifies ammonia, even though the level is currently elevated, it is harmless to the fish correct?