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post #1 of 3 (permalink) Old 11-13-2005, 06:16 AM Thread Starter
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help with pmdd

A little background 33g tank, 110 watts 9325k bulbs using diy c02 (until my pressurized system arrives later this week). Using 4 inches of 100% flourite. I have had mixed results but I blame that on the diy co2 and no dosing of anything.
I have read http://www.rexgrigg.com/dosing.htm and have decided to place an order from gregwatson.com but I am unsure of what test kits I need to keep track of all of this. Can i use the PMDD Pre-Mix by itself and if so can i survive on just the ph kit which i have and go by a kh kit so that i can keep track of my co2 levels. How long will one pound of this stuff last?
I would like to eventually keep track of everything and understand all of what is needed to keep a healthy tank but i am still overwhelmed by all of this, and no matter how much reading i do it never sticks in my brain. So for right now I need "ferts for idiots"
thanks in advance for any advice (or wisecracks Rex )
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post #2 of 3 (permalink) Old 11-13-2005, 02:02 PM
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The most popular method is called the Estimative Index and requires no test kits at all.

http://www.barrreport.com/forums/showthread.php?t=1&

Of course you still need to test your KH and PH to caculate your CO2 levels.

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Barry
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29 Gal. - 100% Eco-Complete/2x65W CF/CO2/Filstar XP2/RedSea500/KH:3/GH:5/pH:< 5.5/EI Dosing/WWC 50%
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post #3 of 3 (permalink) Old 11-13-2005, 02:12 PM
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Find out what is in your tapwater first by getting a technical water report, not the consumer confidence report that is typically provided. I use the Aquarium Pharmaceuticals pH, KH&GH combo, Nitrate, and Phosphate test kits. I dose to hit the middle of the recommended ranges shown here:

http://www.aquaticplantcentral.com/f...fertilator.php

I think in the long run you'll do better dosing the individual ferts rather than an all-in-one mix. Greg Watson sells individual chemicals too.

KNO3 for K+ and NO3, also sold as stump remover
K2SO4 for K+
I use Discus Buffer - monosodium phosphate for PO4
Either Flourish or CSM+B for traces
Baking soda for KH

But you need to know what is in your water to determine if anything needs to be done about Calcium and Magnesium - the components of GH.

TW
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