people that do ei dosing - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 10-24-2014, 02:12 AM Thread Starter
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people that do ei dosing

Just wondering if you guys have test kits for each of the ferts your dosing like potassium magnesium, iron, calcium? I am still looking into this fert method, or do you guys just follow the directions and dont bother testing it? this will be my first planted tank so its hard to figure out some stuff since i have not had trial and error.
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post #2 of 9 (permalink) Old 10-24-2014, 02:46 AM
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One of the concepts of EI is no testing, can if you want, but not needed. Change 50% of the water a week to keep levels from becoming toxic.
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post #3 of 9 (permalink) Old 10-24-2014, 02:48 AM Thread Starter
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Quote:
Originally Posted by FatherLandDescendant View Post
One of the concepts of EI is no testing, can if you want, but not needed. Change 50% of the water a week to keep levels from becoming toxic.
great to know thanks. Yea i thought that since it is estimated that it wouldnt be needed but just wanted to check.=)
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post #4 of 9 (permalink) Old 10-24-2014, 02:53 AM
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EI gives you a base to start with, watch how the plants react they will tell you if you need to tweek your dosage.
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post #5 of 9 (permalink) Old 10-24-2014, 04:17 AM
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Its good to have a fast grower as well they will help u identify problems before effecting others as bad.

Warranty not included
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post #6 of 9 (permalink) Old 10-24-2014, 06:36 AM
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I think my dosage for my 75g low tech is way too much. Even dosing as much as I do I still find I get problems that I shouldn't with some plant.

6tsp k2so4 a week
3tsp kh2po4 a week
1.5tsp planted csm+b a week

I am way above what ei suggest. Only at this dose of potassium can I grow healthy pinhole free hygro company.

I still get the odd gsa on any IAS and a bit on glass.

Get some weird growth from ludwigia.

You have to experiment to see what works.

75 Gallon Low Tech w/ Green Terror Pair
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post #7 of 9 (permalink) Old 10-24-2014, 11:22 AM
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I found this on another forum.
The Estimative Index (EI) coined by Tom Barr is a straightforward method for providing nutrients for a planted tank. The idea behind EI is simply introducing an excess amount of nutrients within an aquarium, throughout the week. This excess of nutrients floods the water column and feeds the plants. This is an estimative method; measuring specific nutrient uptake rates is not necessary and no test kits are involved. EI provides a surplus of nutrients that helps to prevents plant deficiencies, and allows plant growth to out compete algae growth.

The process of which this is done is simple. Each day fertilizers are dosed, and the nutrients are absorbed by the plants. With this method being estimative, we can dose fertilizers according to general guidelines suited for our particular setup (see below). At the end of the week, one performs a 50% water change to ‘reset’ the nutrient load in the entire system. And then the entire dosing schedule is repeated.

The primary fertilizers are the macro nutrients - Nitrogen (N), Phosphorous (P), Potassium (K), and the micro nutrients – trace elements (Plantex CSM+B, Flourish). Iron (Fe) can also be supplemented if necessary.

The Estimative Index method works best for a high light and well planted aquarium. However it is not limited to lower light setups, smaller quantities of fertilizers should be dosed in those instances.

General Dosing Guideline for High Light and Well Planted Aquariums
(wolfenxxx)

10- 20 Gallon Aquariums
+/- 1/8 tsp KN03 (N) 3x a week
+/- 1/32 tsp KH2P04 (P) 3x a week
+/- 1/32 tsp (2ml) Trace Elements 3x a week
50% weekly water change


20-40 Gallon Aquariums
+/- tsp KN03 3x a week
+/- 1/16 tsp KH2P04 3x a week
+/- 1/16 tsp (5ml) Trace Elements 3x a week
50% weekly water change


40-60 Gallon Aquariums
+/- 1/2 tsp KN03 3x a week
+/- 1/8 tsp KH2P04 3x a week
+/- 1/8 (10ml) Trace Elements 3x a week
50% weekly water change


60 – 80 Gallon Aquariums
+/- 3/4 tsp KN03 3x a week
+/- tsp KH2P04 3x a week
+/- tsp (20ml) Trace Elements 3x a week
50% weekly water change


100 - 125 Gallon Aquarium
+/- 1 1/2 tsp KN03 3x a week
+/- tsp KH2P04 3x a week
+/- tsp (30ml) Trace Elements 3x a week
50% weekly water change

Example Dosing Regime for 29 Gallon:


Note: K2SO4 is not required for dosing unless you need the extra Potassium (K). This K is found in KN03 and KH2P04. Dosing these two according to above will yield sufficient K levels. Therefore, one will be fine dosing only KN03 and KH2P04, and Plantex. If one needs to increase their K levels with K2S04, add the same measured amount as KH2P04. For example, if one is dosing 1/2 tsp of KH2P04, then dose 1/2 tsp of K2S04. In true regards to EI, added excess K is not detrimental in any event.


EI target ranges
CO2 range 25-30 ppm
NO3 range 5-30 ppm
K+ range 10-30 ppm
PO4 range 1.0-2.0 ppm
Fe 0.2-0.5ppm or higher
GH range 3-5 degrees ~ 50ppm or higher
KH range 3-5

See APC’s Fertilator for additional dosing guides for Fe, Ca, Mg, etc.


Where to buy fertilizers?
AquariumFertilizers.com can provide you with the necessary chemicals for dry and liquid dosing of the above. For micro - trace elements, Plantex CSM+B, Seachem Flourish, and Tropica AquaCare are equivalent to each other. Drsfostersmith and bigalsonline for the Seachem and Tropica brands.


One Pound of each of Aquarium Fertilizer/Greg Watson's Chemicals will last at least 1 year:

Plantex CSM+B

Potassium Nitrate KN03

Monopotassium Phosphate KH2P04

Potassium Sulphate K2S04 (optional)


Special Notes:


Providing optimal CO2 levels of at least 30 ppm are necessary for plants to prosper and out-compete algae. If algae issue arise, remove all visible algae and infected leaves. Recheck CO2 levels, and possibly reduce and adjust the lighting period.

Direct dry dosing into the tank is perfectly fine. Many dosing straight into the tank, or they dissolve each chemical in water before adding.

Making a Liquid Stock of Plantex CSM+B is more often mixed into a bulk liquid solution since some find it more convenient to dose their trace elements this way. The recipe for this solution is 1 tablespoon to 250ml water is equivalent to: 20 ml = 1/4 teaspoon of dry Plantex. This solution is stored in refrigerators to prevent mold from forming within the container. For making stock solutions for NPK refer here for a resourceful conversion calculator.

Small dosing teaspoons (smidgen, dash, pinch) can be found at Linen & Things, Bed Bath and Beyond, Wal-Mart, dollar stores, eBay and other online retailers. To identify the specific measurements of your smidgen, dash, pinch set, a 1/8 tsp should fill a tsp in 2 tries, 1/16 tsp in 4 tries, and a 1/32 tsp in 8 tries.


Stick to a good dosing regime and your plants will flourish!
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post #8 of 9 (permalink) Old 10-24-2014, 08:16 PM Thread Starter
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yea i saw this also but at the bottom it said ei range and made me think that thats what they want it to be so mabe some of the people were testing all the ei ferts in the tank to see if the lvls were spot on. Out of the ones shown so far the only one that i think is going to be needed to test is the co2 ppm range to make sure that i dont over dose and kill fish from it and not under dose and make my leafs die or get the holes from difficiant lvls
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post #9 of 9 (permalink) Old 10-24-2014, 11:41 PM
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To quote Tom Barr himself; levels and ratios are not important as long as your plants are getting enough nutrients to be non-limiting (which is the ultimate end goal of any nutrient dosing system).

As mentioned above, you may need to tweak based on your own tank's own mix of plants etc. Observation and experience comes into play here. Some tanks can run on very lean levels, other may require more dosing in particular areas to bring out color or eliminate algae. The regular water changes makes sure that levels aren't build up to extreme levels even if you over-dose quite a bit.

Regards, Dennis
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