I just did a 50% water change just to see if it seems to slow things down and potentially bring the pH back to normal. The clerk said most people have had bad luck with RRFs except one customer. Now I’m starting to wonder if I’m gonna join the ranks of those who have killed them. Small tank, 4.2 gal/ ~16L
Yeah! I’m really happy with them now. I actually had to remove a few just because they were taking over, haha. The tank needs at least a little light to filter down to the bottom.