bonniewoodruff
Aquarium Advice Activist
- Joined
- Oct 15, 2012
- Messages
- 171
So today while doing my regular weekly PWC I cleaned the filter pads and realized that under them are bio balls. I have read that bio balls can be nitrate factories. I have the trickle filter to the floss, bio balls, then to the diablo skimmer, then to refugium, then back to tank. I did rinse the balls in the old water. Anyone have any ideas? Do I need to change anything? I did reduce the bio load and they are still holding strong at 20-50ppm.