Ok...I have had nitrate problems with this tank forever... I changed 140Gallons in three days and it's still high 40 to 80 .. Going to do another water change tomorrow.
I got reading and found that Bio Balls with a drip tray causes the oxygen/water/bacteria to make a nitrate factory..I have 8Gallons of Bio Balls with 1 Gallon under water. Sooo I am doing some changes.. Bio Balls are now completely submerged under water except for about an inch with scrubbies mixed in.. Drip tray is elevated about 8 inches above.
And...I cut back on feeding because of my nitrate problem(reason for making this) But I realized the scrubber can't filter if it doesn't have food, so I have continued to feed my normal amount.
These guys are pigs....