Nano tank water change %

[1st reef]

How much water do I have to change if I'm not running a skimmer? I have some corals. 

[WV Reefer]

45 minutes ago, 1st reef said:

How much water do I have to change if I'm not running a skimmer? I have some corals. 

I run no skimmer or filtration and typically do about 30% each time. 

[stevie1493]

I am not an expert, but have had 3 reef tanks over the years and my strategy is to perform a 10-25% WC only when my tank needs it:

 

NO3 >7.0 ppm

PO4 >0.10 ppm

Alk <7.0 dKH

Cal <400 ppm

Mag <1200 ppm

 

It just so happens that with my present tank one of these params is usually out of wack so I do weekly water changes. As I continue to test weekly I suspect that eventually I can go to every other week or once a month water changes as the tank matures.

 

Ill do a 30-50% WC if things are way out of wack, but the weekly WC keep things stable enough that it is only necessary a few times a year to do a larger WC.

 

My .02

 

[1st reef]

Do you run a skimmer? 

[sirrtuan@yahoo.com]

I do a weekly water change about 30%. It is quick for nano. Also, this eliminated dosing for me.

[stevie1493]

On 11/12/2021 at 7:51 PM, 1st reef said:

Do you run a skimmer? 

Yes I run a skimmer.

 

In the past I ran a 10g nano without a skimmer and did 25-50% WC every week or every other week depending on test results.