water change advice

[ClownFish664]

Ok, so I have a nano reef, its 50L having some algae issues at the moment. But my nitrates and phosphates of course go up over time. How often and how big of a water change should be performed on such a system. It does not use a protein skimmer and is LPS only.

After noticing my nitrates and phosphates being so high after being away, ive had to do a 50% water change today and my Micromussa lordhowensis is not happy!

 

[X-37B]

What is high po4 and no3?
I ran a 25 gal nano and did 3 gallon water changes a week.
I would do 1.5 gal a week and call it good.
Just make sure SG, temp, and alk are the same as the tank

 

[Poof No Eyebrows]

Personally I run a ReefDose on my nano. One head removes 1% every morning at 6am while the second head pumps in fresh salt water. I have three 5 gallon jugs under the tank. Fresh salt water, fresh water, and discharge. It’s been working really well.

 

[vetteguy53081]

15% is adequate. To address Phos/nitrate issue - Add a small pouch of chemiPure Blue or elite which will keep it under control and polish your water nicely

 

[arking_mark]

As long as your ASW parameters and temp are closely matched to your tank parameters and temp, larger water changes are fine. 20-30% per week would be larger.

 

[arking_mark]

As long as your ASW parameters and temp are closely matched to your tank parameters and temp, larger water changes are fine. 20-30% per week would be larger.

I should add that quickly changing your nutriient levels is not recommended.