|
#1
|
|||
|
|||
Implications of low magnesium?
I finally got a magnesium test and see what I suspected is true....... I have very low magnesium levels, about 200ppm to be exact. I know low levels interfere with growth and keep alkalinity levels low, but what else? Anybody know what other problems low magnesium might cause? What was your solution if you had low magnesium; just add more?
__________________
Fawn |
#2
|
|||
|
|||
Low mg can cause PH and Ca/ALk instability. It will also decrease growth of coral and coralline algae.
__________________
"Good enough is the enemy of excellence." |
#3
|
|||
|
|||
dang how do you get levels of 200ppm. I would think that even with regular water changes it would keep your mag levels at around 1000 even using a salt mix with low levels.
__________________
Sam |
#4
|
|||
|
|||
I would double check that test kit before dosing..... especially if you ahve done a water change in the last 4 months.
That seems realllllllllllllly low- Matt |
#5
|
|||
|
|||
I agree Thats way to low. what salt are you using? Make sure of the reading and maybe double check with another test kit if possible. What test kit are you using?
Dave |
#6
|
|||
|
|||
Well, I had the tank crash over Thanksgiving, so could that be why the numbers are so stinkin' low? I did nothing BUT change water after that, and have changed out basically all the water of the 75 gallon = 29 gallon sump. I use Reef Crystals and the test is from Seachem- there are 3 tests in the kit 2 for different types of alkalinity and one for magnesium. I will test it again to make sure, but it seems pretty foolproof
__________________
Fawn Last edited by phishcrazee; 12/16/2007 at 07:45 PM. |
#7
|
|||
|
|||
With numbers that low, I would be thinking bad testkit..... Based on my research, it is REALLY hard to have mag get that low... I woudl post on the chemestry forum with Randy - if you double check test kits, BEFORE you take any action.
Reef Crystals has elevated Magnesium.. hmm that is strange... How is your cortaline alge growth? |
#8
|
|||
|
|||
No way it can be that low, get a different kit.
Matt have you checked your RC's for mag? Mine only tests at 1100 using salifert kits.
__________________
Secretary of the Greater Iowa Reef Society. www.greateriowareefsociety.org |
#9
|
|||
|
|||
So we tested it again and it came out the same, BUT we realized we were reading the tests results backwards The test kit is sort of confusing....... my husband read it wrong too, and he has a PhD from Harvard folks and is a chemistry professor, so it wasn't just me, lol.
__________________
Fawn |
#10
|
|||
|
|||
Quote:
__________________
Tom |
#11
|
|||
|
|||
I am switching to RC from IO.. so I am going off of memory now..
I thought it was 1350 or so... I use salfiert kits to test my mag,, and have a gallon of Randy's that I add as needed now... |
#12
|
|||
|
|||
http://www.drsfostersmith.com/produc...fm?pCatId=4856
Parameter Suggested Level: Reef Aquarium Suggested Level: FOWLR Aquarium Average Level: Coral Reefs Specific Gravity 1.023 - 1.025 1.020 - 1.025 1.025 Temperature 72 - 78°F 72 - 78°F 82°F pH 8.1 - 8.4 8.1 - 8.4 8.0 - 8.5 Alkalinity 8 - 12 dKH 8 - 12 dKH 6 - 8 dKH Ammonia (NH3) Undetectable Undetectable Near Zero Nitrite (NO2) Undetectable Undetectable Near Zero Nitrate - Nitrogen (NO3) < 1.0 ppm < 30 ppm 0.25 ppm Phosphate (PO4) < 0.2 ppm < 1.0 ppm 0.13 ppm Calcium 350 - 450 ppm 350 - 450 ppm 380 - 420 ppm Magnesium 1250 - 1350 ppm 1150 - 1350 ppm 1300 ppm Iodine 0.06 - 0.10 ppm 0.04 - 0.10 ppm 0.06 ppm Strontium 8 - 14 ppm 4 - 10 ppm 8 - 10 ppm |
#13
|
|||
|
|||
I have tried to buy a Salfert Alk test for like 2 months now, but each time I went to buy one they were back ordered......... I finally just bought another brand, the Seachem. It might be a little more confusing, but at least I know I'll always be able to get refills etc.
I realize what water parameters are supposed to be Matt, but thanks
__________________
Fawn |
#14
|
|||
|
|||
Matt: have you tried testing your RC's Mg level, last time i did which was like 4 buckets ago, it only tested at 1100 so i have been dosing my water change water.
__________________
Secretary of the Greater Iowa Reef Society. www.greateriowareefsociety.org |
#15
|
|||
|
|||
Quote:
Look who's laughing now!
__________________
-Lee |
#16
|
|||
|
|||
Waverez, where were you running your specific gravity when you test? i am assuming you are .026 ... (and of course knowing you that it is stable ) right?
I have a box of RC, but it is unopened. I am finishing off my IO first..... probably a few more months till it is opened up... I have my MAG on standby in the meantime. that IS good to know though.... |
#17
|
|||
|
|||
Quote:
__________________
Fawn |
|
|