Why My PH Is Keep Dropping

[mqur1963]

it is keep going to 8.14 to 8.16 some time 8.2 before use to be always 8.28 or 8.31 between.

may be since i been using bright well micro becter 7 and bio fuel and my calcium is keep dropping fast i have to keep up to 450.
my refugim has 2 65 watts 6500k light on 24/7. my tank is 150 gal and refugim 65gal. only 8 anemal.6 medium size 2 small. 2 shrimps and cleanup crew. it has been 4 week .since i have this issue tank is over year old.

my nitrate is 0
phosphate is . as per henna instrument .0 as per instent ocean test kit .02 my mag is over 1560.

 

[InfernoST]

Your Alk is probably dropping.

 

[emmanuel]

having a .2 ph swing is normal when the lights are on it will raise when the lights go off it will drop

 

[KathyC]

Frankly, I don't see an issue at all with your pH. You will never find it to be that level, it is normal for it to fluctuate to a degree as mentioned above.

Why is your Mg so high?

 

[OzoneParkGuy]

You have mentioned 2 issues... one being PH & Calcium, and everyone who has posted is correct.
Normally... as KathyC & Emmanuel stated you will have drops in PH at night when your MAIN TANK display lights go off. Even if you have your refug lights on it will drop(can't compete to the MDT lights and people fail to realize this). This is normal.
However, why the decrease from 8.3 to 8.15 within a month may indicate something else. Harry has mentioned a few things. Have you recently purchased any corals, clams or changed dosing supplies? Are you making your own Alk, Ca++ & Mag? Using Randy's recipe. If you are you may need to bake your Alk. Need to mention more.
The use of the Brightwell products may have an effect. Not sure as i don't use them. You may have to look back to what you have changed recently. Could be you may have a sudden intake from your corals also (depending on what you have aswell), alot to consider and you need to sometimes just adjust accordingly.

 

[mqur1963]

i use esv lequid calcuim and marine land lequid reactor with marine land coral groth and ph stabalizer with ph buffer i do have crush coral in my refugim 20 lb my mdt is 4 inch of sand with 200 +lb live rocks and coral and lot's of macro algea

 

[OzoneParkGuy]

I think it just may be time to up the dosing because of consumption.... sounds also like a decent size tank with nice corals.

 

[Chiefmcfuz]

Huh?

 

[CDANN76]

Did you recently add any phosphate media recently as that can lower Alk a little which in turn can lower ph..

 

[mqur1963]

no but since my phosphate is gone from .02 to 0 may be my phosphate media is causing problem also my ph is keep dropping to 8.05 now even adding esv both 1&2 part it is good for about 2 hr then dropp to 8.05 may be i added last night brightwell bectaria bacter 7 and bio fuel may be that is causing problem and my water been cristal clear to foggy now

 

[OzoneParkGuy]

So ever since you've been adding the bio fuel and Bacter 7 you have been having problems? Why did you add them in the 1st place if you don't mind me asking??

 

[mqur1963]

no did not add phosphate media but did add brightwell becteria micro bacter and bio fuel which lower the phosphate from .02 to 0 probably tomarrow i will remove 1/2 off my phosphate media since phosphate is 0 it might be causing problem my phosphate media is in there for 200 gal tank water

 

[InfernoST]

What is your ALK?

 

[mqur1963]

bump

 

[mqur1963]

it is still dropping and i am keep adding esv both part day and night

 

[jsvokowest]

Had the same happen to me after i month of the Microbacter 7 and Bio Fuel dosing. Could not raise alk for nothing. Used ESV but once the Brightwell product was added the problem took off. Not sure if he followed the same thread here i did about the Dosing bio fuel microbactor 7 vs Biopellets.

 

[mqur1963]

my ph wright now reading 7.89

 

[mqur1963]

my phliquid test shows 7.8

 

[jsvokowest]

Exactly where mine was. Caused me to lose three fish. Stopped the dosing and had a slight cyano outbreak. Filters in Two next reef reaactors have clogged within days and skimmer perfomance went nuts. At night the skimmer would just pump clear liquid but would be fine during the day due to adjustment but would go nuts at night again. My water did remain clear. Just ordered a full set of salifert kits and will post readings by the weekend of where i am at one week after i stopped dosing.
Hope you figure this out.

 

[Josh]

OK hold up for a second.

I see a lot of problems here. First off, you are dosing too many different things without knowing what is working.

What are you using to test pH? I see you are indicating swings of .2-.3, which is totally normal. I get a swing from 7.9x-8.3x throughout the course of the day.

If you are using a pH probe, have you calibrated it recently?

What is your Ca/Alk at? Salinity?