NJJ
Sun, 26 Dec 2004 8:12 pm
Hi guys,
i need some feedback as to how much water change if i am switching sponge filters for my tub. My tub size if ard 3ft by 1.5ft,, keeping 2 TVR only. How much do i change per week?
I used to change ard 20% every 3 days when using OHF.
Regards
JJ
Seacucumber
Sun, 26 Dec 2004 9:55 pm
any sort of bio filtration produces nitrates as their final product....
the best is get a nitrate test kit to gauge for yourself when to change water...
try to keep nitrate level below 50ppm....