high Ph water chemestry questions

This tank is in the bedroom against a well with no sun and its a room with very high celings and 2 fans on the ceiling. I designed the room to be fish tank friendly.The size of the room is 24x14 I upon building this room tried to keep every aspect fish tank in mind. The 92 corner is in the room adjacent to the bedroom in my sons room this one is 12x18 and is like our room standard ceilings though and its away from the sunlight also. Both rooms have 3 windows each. The Red sea max is in our thearter room in the basement. It is a 24x14 in that is 1/2 of the basement that is fullyfinished thearter room with a fan system that brings clean air into the room(I dont know the name if system) This is description of layout.

I do get what your saying about the ro/di unit but I use this water in the other tanks also and change my filters every other month. I will test the water again but have had normal reading upon testing it before. Its fruesteraing. I have battled nitrates for along time with this tank as I went into this system years ago having not done the proper homework setting it up but they have floated around 10-20 at highest they ae higher slightly now as I went on vacation for the last few weeks also the reason I wanted to do wc.

Just to clarify the 220 is a reef tank with corals fish and lr, The 92 is a predatory only tank with lr about 150 lbs, and the red sea is what my wife calls a dori and nemo tank not since the cuttle has passeed so like it sounds 8 clowns and 2 tiny quarter sized blue tangs with about 40 lbs of lr and a refugium and pm redline 125 skimmer. The 92 is the same way refugium and euroreef skimmer.

I hope this best explains my case. Thanks

 

That is a lot of lighting, but the photoperiod isn't that long...

Do you measure ph at the same time each day? Try measuring it in the morning before lights come on, and several hours after lights go off if possible...

What test kit do you use for ph?

In order to calibrate a probe for testing your tank water, a high ph calibration solution needs to be used... what are you calibrating with?

Also, do you have a lot of soft corals? like leathers, etc? if so, maybe they are releasing toxins (they are known for doing this) into your tank... you should be running a LOT of carbon or a carbon reactor to remove the toxins, if so. Not sure that this would raise ph, but it would kill off other corals, especially sps.

Do you have a refugium with macro algae?

 

I have tested in am in afternoon and eve. it does flucuate yes. I have a ton of fuzzy mushrooms in the tank probally 10-12 I run carbon 24/7 and a decent ammount. I used api, Salifertand a few others. I have at least 3 of each kit so readings are simm across the boards. I do have a huge 12-14 in leather also. If you think this is the issue I can up the carbon some more. The sump has macro cheato and mangroves in it.

 

This sounds like a very, VERY solid setup. You seem to know what you're doing and also seem to run all the equipment you need.... I wish I could help, but I don't have all that knowledge. I'll stick around to see what's up.

What kind of sand do you have in the tank in question, though? And what salt mix do you use for this tank?

 

fiji pink is my sand in all the tanks and reef crystals is the mix.

 

Have you tried a calcium reactor? i have heard of people using one to keep their PH down. I can't speak from experience since i struggle to keep my PH up.

 

Well here is my weekly test results maybe im overlooking something but I tested 2 tinmes with salifert kits then red sea test kits everything on all 4 of my testings was simmular readings.

Ph 8.6 by test 8.7 according to reefkeeper II
The dkh is 9
alk is in the middle but closer to low on the api kit
calcium is 480
mag spot on 1250
nitrate is 40 I also tested my tap water again with a 0 reading there.
nitrite is 0
amonia 0
I am going to adjust the alk but why is that lower and the calcium high? I thought the went the same way and it was magnisum that fought them? Heck maybe this is simple I might just be having a moment.

 

what do you dose for alk?

 

Calcium and Alkalinity inverse of each other.

Calcium and Alkalinity by Randy Holmes-Farley - Reefkeeping.com

Here we go, where is Dingo when you need him.

 

That is going to be an issue here as I have the 2 part additive.