DIY ammonia dosing for low N systems

Randy Holmes-Farley

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Randy. I am using 4.75 tsp to 1 liter of ammonium bicarbonate for a stock solution. How long does this last for shelf life? Initially it smelled of ammonia but after a few days it no longer has a smell. Does that mean it is no longer useful? I have about 210 gallons of total water so I only need about 20ml at a time so it will take a while to work thru the liter. Wondering how long it lasts or if I should be making a much smaller amount at a time.
 
Randy. I am using 4.75 tsp to 1 liter of ammonium bicarbonate for a stock solution. How long does this last for shelf life? Initially it smelled of ammonia but after a few days it no longer has a smell. Does that mean it is no longer useful? I have about 210 gallons of total water so I only need about 20ml at a time so it will take a while to work thru the liter. Wondering how long it lasts or if I should be making a much smaller amount at a time.

If it is sealed it will last forever. I am not sure how long it takes to escape from any given container. Keeping it as best closed as possible is a good plan.

I keep mine for weeks in a glass milk jug with a hole drilled through the cap for the dosing tubing, though I have not verified its potency vs time.
 
Never thought I’d have to resort to this but despite feeding heavily I have chronically low nitrates but anywhere from .03 to .07 phosphates

Looks like I need to dose ammonia
 

HOW MUCH DOES A FISH’S FEEDING REQUIREMENTS AFFECT YOUR STOCKING DECISIONS?

  • A lot! - I avoid fish that require frequent or specialized feeding

    Votes: 7 26.9%
  • Quite a bit, but an automatic feeder can change my answer

    Votes: 5 19.2%
  • It depends on whether my nutrient export can handle it

    Votes: 5 19.2%
  • It depends on how badly I want the fish

    Votes: 8 30.8%
  • Not much. I’m willing to adjust my routine

    Votes: 5 19.2%
  • Not at all. Feeding demands don’t limit my stocking choices

    Votes: 5 19.2%
  • I usually learn about the demanding feeding schedule after buying the fish!

    Votes: 1 3.8%
  • I haven’t really considered this before

    Votes: 2 7.7%
  • Something else (see my comments in the thread)

    Votes: 0 0.0%
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