CSM+B or Iron Chelate - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 04-12-2006, 04:02 AM Thread Starter
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CSM+B or Iron Chelate

Hey, If I am useing CSM+B, would I still use Iron Chelate?

Also, I just checked my Water and have 10 ppm of Nitrates, Would I still dose with KN03?

You all are probably getting tired of all these Ferts questions, but I am almost there.

Thanks

Joe

10 gallon hospital tank.
29 & 50 gallon - High Tech C02 enriched.
50 gallon Pond - Natural.
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post #2 of 3 (permalink) Old 04-12-2006, 04:44 AM
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CSM+B has iron in it, but if you want more than that you can add chelated iron. Not everyone agrees on how much iron is enough, let alone ideal.

With 2 watts per gallon of light your plants will consume quite a lot of nitrate in growing. 10 ppm is barely adequate, even if you were maintaining that amount with every other day fertilizing. Those two facts (as I see them) say you have to dose nitrates to have good plant growth and inhibited algae growth. KNO3 is also a major source of potassium (K), so you need to dose for that too, either with KNO3 or K2SO4, so why not kill two birds with one stone and dose KNO3?

Incidentally, your test kit may say you have 10 ppm of nitrates in your tap water, but those kits are not known to be very accurate. That 10 may actually be 5 or 15, unless you calibrate the kit with a known ppm sample. And making known ppm samples can be very difficult to do accurately. Still another reason to use EI fertilizing.

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post #3 of 3 (permalink) Old 04-12-2006, 04:57 AM Thread Starter
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Thanks Hoppy, I was thinking that the Nitrates should be between 10 and 20 ppm. Because this was the first day that I added any ferts I didn't add the KNO3 .

Heres what I did:
1/2 tsp K2S04 dry, 10 ml of KH2P04 which was mixed 1 1/2 tsp with 250 mil water..
I'll add the CSM+B tomarrow and maybe a little Iron Chelate.
Again I have hard water 150ppm, PH 7.2, KH 7, C02 13ppm.
Ammonia and Nitrite is zero. Nitrate 10.

Again thank you for any help and all your answers.

Joe

10 gallon hospital tank.
29 & 50 gallon - High Tech C02 enriched.
50 gallon Pond - Natural.
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