Gor22don33

Great overview! I'm sure I'll be referencing this thread often . . . . very simple to understand. I especially like the target levels and the dosing schedule table!
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Mr. Fish

John I just realized your math on this is wrong:



1/8 tsp should fill a 1/4 tsp in 2 tries: correct.


1/8 tsp should fill a 1/16 tsp in 4 tries: Incorrect.

(1/16tsp will fill a 1/8 tsp in 2 tries)


1/8 tsp should fill a 1/32 in 8 tries: Incorrect.

(1/32 will fill a 1/8 tsp in 4 tries)

gladiator008

Question.... I have Dry Ferts Potassium sulfate and Potassium nitrate just recieved in the mail . No instruction on how to add it to my tank . so how would I add it to my tank?

Aquaticz

hilarious post....
suggestion read thread
.

short answer - mix it or not
I suggest you use Wets calculator

http://calc.petalphile.com/

one more suggestion PACK & I mean Pack the plants in before using ferts
HTH

gladiator008

Thanks Aquaticz

Jmitchem

Thanks, one question though can I pre-measure pre-mix both dry ferts KNO3 & KH2PO4 into a weekly pill holder* without it exploding or messing it up? That way I can track my 3x per week dosing better.

weekly pill holder: the container with snap lids, that has the days of the week on it to keep track of taking prescriptions.

thanks

bosmahe1

Not sure if you got your answer yet. Yes you can mix those two chemicals together without issue. Just don't mix KH2PO4 with Fe or micros containing Fe. This combination would probably be very cloudy and the Fe would be rendered useless.

cephelix

Good evening from Singapore fellow APCers.

My virgin post would be regarding EI. Have only started it a few days ago and I have a few queries.

But first, the specs for my tank
Volume: 20 gallons
Lights: 55W PL but I have another spare in case I want to increase lighting.
Planting Density: Medium (Cabomba, Christmas Moss, Dwarf Sagittaria, Anubia, Crypt and Tenellus)
CO2: Pressurized with a diffuser, purchasing a drop checker this weekend to determine if I have 30ppm but currently it's at 1bps.
Substrate: Gex Black Soil

Target doses for components;
NO3 in the form of Ca(NO3)2: 30ppm
PO4 in the form of KH2PO4: 2ppm
K in the form of K2SO4: 30ppm
Micros: LushGro Micro

Using "Yet Another Nutrient Calculator" plus some simple calculations,
It was recommended that I dose:
4.00g Ca(NO3)2
255mg KH2PO4
4.68g K2SO4

Dosing schedule would be dry dosing macros on odd days and micros on even days, off on Saturday and a 50% WC on Sunday.

My question is;
a. The Calculator suggested that I dose the above mentioned weights every other day but some people have suggested that I divide the above dose by 3 and dose a third of the weights each day. Which regime should I follow then?
b. For the Micros, contents on the Website http://www.ecocityhydroponics.com/lu...os-liquid.html
puts the contents of the solution as:
Iron as EDTA chelate 21,253mg/L
Zinc 617mg/L
Manganese 5,684 mg/L
Copper 267mg/L
Boron 483mg/L
Molybdenum 471mg/L

and to dose 1 drop per 100L of water. Should I follow the instructed dosage or do I calculate out how much to dose?

Hope you guys can help.

Kindest Regards,
Ali