Started Ei Dosing/ Nitrates are HIGH?! - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 12-28-2013, 12:53 AM Thread Starter
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Started Ei Dosing/ Nitrates are HIGH?!

hey guys I just started EI dosing yesterday on my 20 gal long. I micros yesterday (CSM+B) and idid macros today (KNO3, KH2PO4, K2SO4) idid the appropriate doses and I tested my water today and my nitrates are 160 ppm?!?!? not sure if there was a malfunction in the test kit or the dosing raised my migrates really high? Would it be necessary to dose KNO3 since I believe my fish are producing the nitrates? they seem to be doing fine and haven't noticed anythn but ithink im going to do a water change?

any help guys? thanks!
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post #2 of 3 (permalink) Old 12-28-2013, 01:40 AM
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The test kit could easily not be the reliable piece of information. You can know exactly how much nitrates you added to your tank by using a fert calculator such as http://rota.la/en/

Double check that you are adding the correct amount of ferts. Some cheap measuring spoons aren't always totally accurate either. Additionally, make sure you are using the calculator with total water volume. Your 20L does not have 20 gallons of water, considering the tank is likely not filled to the top and you have substrate, plants, etc.

Most importantly, every tank is different. EI is exactly what the name infers, estimative. It could (and should) be dialed in more specifically for each tank based on plant growth and development. It is perfectly fine to dial back ferts and watch the plants for signs of deficiencies. The "20 gallon" regiment will not produce the exact same levels of nutrients with every tank. So don't be afraid to reduce amounts, but even more so, don't be afraid of a test kit that says you have high levels either. The better end of the pendulum to swing is having too many, rather than not enough. That's the whole point of the system, to always have more than enough fertilizers.


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post #3 of 3 (permalink) Old 12-28-2013, 03:46 AM
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Quote:
Originally Posted by MERSF559 View Post
hey guys I just started EI dosing yesterday on my 20 gal long. I micros yesterday (CSM+B) and idid macros today (KNO3, KH2PO4, K2SO4) idid the appropriate doses and I tested my water today and my nitrates are 160 ppm?!?!? not sure if there was a malfunction in the test kit or the dosing raised my migrates really high? Would it be necessary to dose KNO3 since I believe my fish are producing the nitrates? they seem to be doing fine and haven't noticed anythn but ithink im going to do a water change?

any help guys? thanks!
Do the test again but make sure to VIGOROUSLY shake the bottles before testing. I tested my phosphates last night (I also dose KH2PO4) and it came out 160+ppm... Knowing that wasn't right I retested but shook the bottles. The second test came out to about 1ppm. Which was correct. lol

Also, cap the test tube after adding bottle #1 and shake a little, then add bottle #2 and shake again. Make sure to let sit for 3-5 minutes.
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