Low Ph

[lsingh]

I am sure it's. Most common problem in this hobby...
My 90gln has been droping its ph from last few days... It is purely a coral tank with only two small fishes... I got mag 9 as return and tunze wave box with gud water movement... My alk is around 9 to 10 dkh.. What can cause ph to drop to 7. 74 that's what I see now


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[pumarjr]

what are you measuring the PH with? also, have there been any changes lately to the tank? Running Kalk? Any die-off?

 

[Murfman]

pH will drop, naturally, at night. You can put your refugium, if you have one, on a reverse light cycle to keep the pH up. I also does kalk so that keeps my pH up.

 

[Aquaph8]

Its most likely from having a closed up house with excess CO2. Opening windows when possible may help a little, fuge helps too. This is why people drip Kalk, cause it has a really high PH.

 

[lsingh]

I dnt hve fuge.... I am measuring my ph with ph proble and It was calibrated last week....
Can u drip a kalk while u dozing alk all day with the doser???


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[Reef Breeders Verified Sponsor]

Are you measuring at night? Ph is usually 7.75 right before the lights go on.

 

[lsingh]

My apex updates it every second... I am looking at it right now it 7.95


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[Bugg_zy]

I have the same exact issue. My alk tested at 9 today with a salifert and the ph in the tank was 7.76. I have my top off bucket filled with kalk and hooked up to an tunze ato. What I noticed was the ph was great when it was sunny out and my ato kicked on frequently. Also the front door was left open more. Now that it has rained the last few weeks not enough kalk is making it into my tank to keep the ph up. Fresh air is a great answer if you live in a place that does not get cold, but where I live we have more winter then summer. I opened the door for a bit before leaving work and the ph started rising even with the lights still off in the tank. Not sure how well it's going to work but have heard good things about the pellets that filter co2 out by hooking it up to the skimmers feed tube. Folks report a .2 increase. I do have a small fuge on the reverse cycle and it does not seem to be making an impact. Hopefully I can get some funds together and give the pellets a shot. I will be following along to see what you folks come up with.

 

[lsingh]

Temp of my tank was a little high when I got hme at 81.5... I hve noticed that high temperature reads low ph sme times...
Well hve a question does anyone dose kalk with two parts goin on side by side....




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[Reef Breeders Verified Sponsor]

Kalk shouldnt effect 2 part. Just make sure ca and alk dosers are on alternating cycles if not already.

 

[lsingh]

Kalk shouldnt effect 2 part. Just make sure ca and alk dosers are on alternating cycles if not already.

I dose alk and ca with my LM3 and it dosing all day in small quantities... I am planing to dose kalk with one of the slave pump that hooks up to LM3...is it a gud idea...??

 

[Reef Breeders Verified Sponsor]

Go for it, you can also just put it in your top off water.