Mag level?

[Pschmitt]

http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=19747

Been dosing 5 ml per day with this and still no change. Starting today am dosing 10 ml per day. Is it really that hard to raise mag?

Alc 7
Cal 400
Mag 1150
No3 1 mg/l
(Elos test kit)

 

[ccCapt]

It's not hard to raise mag, your just using a product that is somewhat weak. According to the directions, 1ml per gallon of tank water will raise the mag 26ppm. How big is your tank?

 

[Pschmitt]

29 gallons with an Eshopps 75 sump, 35 lbs LR, 30 lbs LS. Maybe suggest a better product? Also am getting a different test kit today to double check. Thinking of trying the Salifert.

 

[Pschmitt]

So I'm assuming probably have 30 net gallons?

 

[ccCapt]

So doing a little math, if it takes 1ml/gal to raise mag 26ppm, it will take 4ml/gal to raise it 104ppm. In a 30g tank, you have to add 120ml to raise it 104ppm which would take you to 1254.

What brand salt do you use and whats your salinity?

 

[Pschmitt]

Tropic Marin and I keep it at 1.025.

 

[Pschmitt]

Oh and I also do 5 gallon WC's every week.

 

[Pschmitt]

Thanks everyone for your input. Figure I'll be dosing mag at 30 ml a day and at the end of the week should be around 1250 or so (26 ppm a day increase). Also thinking of just switching to IO and just adjust the make up water since I'm dosing anyway and it's a lot cheaper.

 

[ccCapt]

Also thinking of just switching to IO and just adjust the make up water since I'm dosing anyway and it's a lot cheaper

There really won't be anything needing adjustments.
Here's a little comparison.
calcium: IO-400, TM-375
alk: IO-11, TM-10
mag: IO-1350, TM-1230
Synthetic Salt Mixes - Reef Central Online Community

 

[Hardridge]

Just curious what are the nitrate and phosphate levels in the salts