Whats your take on PH

[Lasse]

For me - the best way to have a better pH was to change my 3 year old probe to a new - it took 15 minutes (including calibration) to rise the low value from 7.8 to 8,1

Just point out the risk of measurement fault

Sincerely Lasse

 

[LC8Sumi]

@Lasse, Thank You very much for your detailed responses. It's evident that you know a lot more about the topic than I do & there is clearly a lot more for me to learn!

 

[Yates273]

Well I just finished running 3/4 pvc outside and hooked up to protein skimmer. We will see how it goes. Don’t mind the ugly silicone job. That is temp until it gets warmer then I will put a vinyl spigot mount with trim. As far as inlet I glued a plastic mesh screen to elbow. I here the skimmer sucking air from outside. Fingers crossed

 

[Quietman]

So far hasn't been a concern. I run 7.70 to 8.30 seasonally it appears. Oddly, I have lower in summer than I do in winter when house is more closed up. Maybe it's all my wife's houseplants. I separate health from optimal growth. I don't need or really want super fast growth rates. Plus it's easy this way.

 

[Lasse]

Maybe it's all my wife's houseplants.

May I ask if she have many of them and if they are "fast grower"?

It is very interesting comments because I was for many years responsible for the ventilation of a rather large indoor "rainforrest" at Universeum, Gothenburg, From around September to early May - we run the air in a recirculating mode during daytime in order to save heating costs and to use the CO2 from our guests to our plants and trees. It works very well for the years I was there - trees and plants use the CO2,,,hence clean the air from CO2 and get some oxygen out in the air. I know it works

Sincerely Lasse

 

[Scorpius]

7.78 ph was when I ran the skimmer two days with inside air. Reading taken during the day. 8.04 ph with outside air ran to the skimmer. Reading taken during the day.

My house is one sealed up building I guess.

 

[Yates273]

Success! Ph is now 8.2 at 8 am

 

[William Robinson]

So I have struggled with pH on my Acro tank for a while. There is an external air supply from outside my home via airstone, skimmer and Ive tried various buffers to keep it up. I've run my refugium lighting both opposite and with my lighting schedule and it always falls to the same range below. Do you guys think I should do anything or just leave it be? This is a SPS dominant tank, I do see good growth and everything seems very healthy on the SPS side. I did have an LPS in there that developed RTN but it quickly stopped and regenerated a few weeks ago but other than that its seemed quite health.
Parameters:
Temp 78.6
Magnesium 1440
Calcium 435
Alk 11.5
Nitrates 5