Originally Posted by MonkeyMonk86
Wow! That was the water change from hell for sure. Will the Metafix affect your nitrogen cycle? ( I'm learning)
Yes and no, I have noticed an increased rate of nitrate development with Melafix, part of it may be the death of bad bacteria, or the medication is causing the fish to breath faster, which means more ammonia/waste. But in my experience it has never been anything that has caused alarm.
I like Melafix a lot. It's pretty safe, and it has a comforting/calming effect on the fish. I've used it when adding new fish to dull down the excitement.
Doesn't matter what it is, anytime I drop a new fish in, my older ones have to be all over it, stressing it out even more,
But it works really well at healing tattered fins, and scrapes especially.
I do think it becomes an irritant after it expires, so you do want to do a water change to get it out after it's... worn out I guess.