Reusing water for WC

[Jmas4]

Hypothetically, could you reuse water from an different tank to change the water in a fowlr? I do not have a fowlr but I do have a reef tank. In this reef, my pH, alk, cal, nitrates and phosphates are all in the correct range to grow coral. My dosing and WC regimen keeps these parameters stable. Therefore when I do WC it is for replenishing trace elements and slight reduction in nutrients. So the water taken out is not technically dirty or wrong chemically. Then can't you reuse this water to do a water change on a fowlr? Fish are not as sensitive to nitrates and phosphates and I do not think they will mind a lack of trace elements.
To add another step if I add extra ro water to increase the % of water change for the fowlr without adding salt and I lower salinity, I do not think the fish will mind this either correct?

Thanks and Happy Reefing!

 

[X-37B]

I have used WC water to start new systems with no issues.

 

[X-37B]

Hypothetically, could you reuse water from an different tank to change the water in a fowlr? I do not have a fowlr but I do have a reef tank. In this reef, my pH, alk, cal, nitrates and phosphates are all in the correct range to grow coral. My dosing and WC regimen keeps these parameters stable. Therefore when I do WC it is for replenishing trace elements and slight reduction in nutrients. So the water taken out is not technically dirty or wrong chemically. Then can't you reuse this water to do a water change on a fowlr? Fish are not as sensitive to nitrates and phosphates and I do not think they will mind a lack of trace elements.
To add another step if I add extra ro water to increase the % of water change for the fowlr without adding salt and I lower salinity, I do not think the fish will mind this either correct?

Thanks and Happy Reefing!

That should not be a problem at all, imo.

 

[mdb_talon]

Yes it should be no issue. When I ran a fowlr years ago that's how I did it....from reef to fowlr and from fowlr to drain.

 

[homer1475]

If I had a FOWLR, it's exactly how I would do it.

Fresh into the reef > reef to FOWLR > FOWLR to drain.

 

[nereefpat]

Hypothetically, you could do that. It would be worth doing if the water you pull out of the reef is "clean." I've filled my QT that way.

My water change water is really dirty, and full of algae and cyano.