EI dosing nearly got it!! :0/ - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 03-18-2009, 01:41 PM Thread Starter
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EI dosing nearly got it!! :0/

hi,
quick question...... i hope! :0)

reading up on EI, just wanna check i'm getting it sorted?!


so i add suitable ammonts (pre mixed) of these every other day

Potassium Nitrate (KN03)
Mono Potassium Phosphate (KH2P04)
my tap water has 3-4 phospates so need to go light on this??
Potassium Sulphate (K2S04)
Magnesium Sulphate (MgS04)
not too sure about these, depends on tap water? should i add anyhow? no damage can be done i guess?

Tropica Plant Nutrition on the alternate days

and a GH booster after water change?
guess i need this even tho i have tap water of GH11 in case one of the ingredients is lacking?

these would be my target ranges?
Nitrate 20-30 ppm
Phosphate 1-3 ppm
Potassium 20-30ppm
CO2 30ppm


is that it? have i got anything wrapped round my arse or missed anything out?
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post #2 of 4 (permalink) Old 03-18-2009, 03:04 PM
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If..........the tap does have 3-4ppm from their analysis, (not your test kit unless you calibrated it), then you likely can not dose PO4 at the water change day.

More PO4 will not hurt, but you might not need it.

GH booster is a fair amount of K2SO4.
You can add K2SO4 instead after a water change only.
Mg might be light even if the GH is 11 etc, so check that tap water report.
You might just add a little MgSO4, epsom salt, after a water change etc.......
Then avoid GH booster.

You can dose every other day or cut the amounts in 1/2 and dose daily, whatever routine works for you. It's not written in stone.

Just the idea that you dose frequently(whatever fequency is good for you depending on the growth rates/light intensity), then do a good sized water change to reset the tank at the weeks end.

Nothing more really.
Targetting those ranges should be relatively easy as long as ou keep a good eye on the lants and make sure they are growign well, good CO2...........moderate to low light etc. Light and CO2 are more crictical and will cause more issues for folks than nutrients.

So pay attention to those more.


Regards
Tom Barr




Regards,
Tom Barr
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post #3 of 4 (permalink) Old 03-18-2009, 07:26 PM Thread Starter
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best i could get from water supplier is an average from 8 outta 22997 properties in my town taken 18 or so months ago!! :-/
potasium not listed, mg not listed, Phosphate listed as dosed but no actual amounts! :-(
thought i had it sorted, feelin bit lost again now! :-/
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post #4 of 4 (permalink) Old 03-18-2009, 08:31 PM
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I'd just go with the recommended EI dosing for your size tank. As Tom said, a little extra PO4 isn't going to hurt. After you get things dialed in you can always try cutting back on PO4 and see how that goes if you're still concerned about it.
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