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*waiting to hear question #2*

-Formerly known as the Ferretfish

any word on the test after you compared it to another kit?

You might also want to check your Magnesium levels.....I know, I know....another test kit to buy, and one that isnt really cheap at that! Low magnesium levels will also make it hard to keep calcium up, so Id check that also.

I highly doubt that your rock and corals could use up the calcium that fast! Even in my 180 that was sps dominated and that had 400 + lbs of rock did my calcium ever get used up that fast. Granted the corals used the calcium and I had basically no coraline growth except for some on the rocks.....but still. If your corals were sucking up that much calcium, you would notice considerable growth!

i know th coraline algea eats calcuim bit it dont eat it as fast as tht.

LPS i have one hammer head tht does'nt show any growth, i raly do think its the sps

Umm...sps aren't the only things that use calcium....you have any lps? any corraline algae growth? other side reactions using calcium?

Maybe there was a mistake with the first reading. Taking a reading too soon after dosing calcium/alk etcetera can throw off results.

I dunno, just throwing out ideas here...

One other idea - your 5 sps ate it all....

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Critical Fertilator: The Micromanager of Macronutrients

lol have done

I thought I could keep the questions going one by one.....he stumped/stopped the 20 questions when he said he was using Salifert

ready for question #1 of 20 questions?

that's what I meant

-Formerly known as the Ferretfish

its not a question....Its a request

Do the test again, make sure you do it drop by drop and that the test tube is squeaky clean

Just a Q

i have 5 sps they are all small about 1"-2" i tested my calc on sunday and it was 460. I tested it again today and it was 390. how are my small sps taking all this calc in?

Cheers

it is a salifert test kit

I certainly dont have money for one

I agree with Liana, Id point the readings at either a poor quality test kit, an outdated test kits, or user error. With no more than what you have in the tank your calcium shouldnt be going that fast.

I also second the vote on Salifert test kits, especially for calcium.....cant beat the accurace of a lab quality test kit

Well not everybody has the money for that Nathan.

I'm happy with my pH monitor though. Pfft!

-Formerly known as the Ferretfish

Other than a calcium monitor with a calibrated probe

and to add to that, how old is it? They do expire...and crazy things can happen with like evap. and whatnot...

my recommendation right off the bat, is going to be switch to Salifert no matter what it's the only thing I truly can say I trust

-Formerly known as the Ferretfish

10.5 dkh is pretty good....

ready for question #1 of 20 questions?

What test kit are you using?

alk is 10.5

They might not be....what is your alkalinity/dkh reading?

High alk/dkh will drive calcium down.

Check that first