Question about dosing ZeoVit products.

[The Grizz]

This is for all of you that use ZeoVit additives and it kind of sounds like a really really dumb question but would like to know what everyone else does.

When you calculate how much to dose do you include the water volume in your sump as well as your DT.

[Milad]

Originally Posted by The Grizz

This is for all of you that use ZeoVit additives and it kind of sounds like a really really dumb question but would like to know what everyone else does.

When you calculate how much to dose do you include the water volume in your sump as well as your DT.

(DT water volume + sump water volume - rock displacement) / 2

[Milad]

FYI
every-time i followed the bottle instructions i always got problems so i just do half of what it says.

[The Grizz]

Originally Posted by Milad

(DT water volume + sump water volume - rock displacement) / 2

Ok I cant wrap my brain around how to calculate rock displacement.Why do you divide by 2?

[Milad]

Originally Posted by The Grizz

Ok I cant wrap my brain around how to calculate rock displacement.Why do you divide by 2?

well looking at your signature if you got decent amount of live rock id say you are around 140g? if that sump is half full.

[The Grizz]

My sump volume is 65 gal + 165 gal DT = total water volume is 230 gal. But not 100% sure how many lbs of rock is in the tank and sump. When I re-do my rock work soon I should weight it all, will that help to determine the displacement?

[xtreme]

Originally Posted by The Grizz

My sump volume is 65 gal + 165 gal DT = total water volume is 230 gal.

Yes but how much water do you actually have? Most sumps run around half full I would guess so call yours 35 or so? Then in your display there is probably only ~140 gallons of water after you subtract rock displacement etc. So I would base your dosing, Zeo or otherwise on ~175 g system and not a 230g system.

And I agree with Milad, start with half doses for zeo.