Homemade iron supplement
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I assume a product like this: Ferrous Gluconate Powder would give similar results?
Powder just seems easier to work with than tablets and you avoid some of the potential binding agents to keep it in tablet form.
Powder just seems easier to work with than tablets and you avoid some of the potential binding agents to keep it in tablet form.
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I use ferrous gluconate powder. It was not as readily available when I started using the Fergon. There are diy recipes using the powder in the diy archive sticky.
How many grams of ferrous gluconate powder to ml to make a stock solution. How much would you dose in a 300 gallon system?
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The DIY chemistry archive:
www.reef2reef.com
from it:
Ferrous gluconate is about 11.6% iron.
If you want 0.04 mL of the additive to add 1 ug/L to 100 gallons (= 378.5 L), then that 0.04 mL needs to contain 378 ug of iron.
378 ug/0.04 mL = 9450 ug iron per mL
9450 ug iron needs 81.5 mg of ferrous gluconate.
Thus, if you add 8.15 grams (8,150 mg) into 100 ml of water, it will have the desired potency.
Iron levels are not critical, and folks use a wide range of targets.
Adding 1 ug/l once or twice a week seems like a fine plan to me. For 300 gallons, that means either use 0.12 mL, or dilute the stock solution 1 part solution above to 9 parts ro/di, and then dose 1.2 mL.
DIY Chemistry Archive
I thought it would be useful to have an archive of DIY chemistry methods. I'll add to it as things come up. Calcium and Alkalinity DIY method comparison https://www.reef2reef.com/threads/randy-recommended-diy-two-part-recipes.984604/ Three Part using Sodium Hydroxide (including Balling Part...
www.reef2reef.com
from it:
Ferrous gluconate is about 11.6% iron.
If you want 0.04 mL of the additive to add 1 ug/L to 100 gallons (= 378.5 L), then that 0.04 mL needs to contain 378 ug of iron.
378 ug/0.04 mL = 9450 ug iron per mL
9450 ug iron needs 81.5 mg of ferrous gluconate.
Thus, if you add 8.15 grams (8,150 mg) into 100 ml of water, it will have the desired potency.
Iron levels are not critical, and folks use a wide range of targets.
Adding 1 ug/l once or twice a week seems like a fine plan to me. For 300 gallons, that means either use 0.12 mL, or dilute the stock solution 1 part solution above to 9 parts ro/di, and then dose 1.2 mL.
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