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Full Version: Water Change For Sponge Filteration Setup
RafflesGold Forums > Discussion Area > Green Water, Filtration and Tank Setup
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.

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....
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