1st fert purchase advice - The Planted Tank Forum
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post #1 of 4 (permalink) Old 05-13-2005, 05:25 PM Thread Starter
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1st fert purchase advice

Tap Water

ph 7.4
p04 2-3
gh 3
kh 1-2

I need to order my ferts. Trying to follow several folks advice (particularly Rex Griggs) and get the seachem ferts to start with. Is the following list correct. Any additions or deletions?

flourish nitrogen for my nitrates
flourish trace for my trace elements
flourish phosphates for my phosphates (do I need this with tap at 2-3?)
flourish potassium for my potassium (do I need this as Rex mentioned that he stopped dosing potassium separately and only uses the potassium contained in the nitrates)

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post #2 of 4 (permalink) Old 05-13-2005, 06:34 PM
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I'm sure Rex has good reason to suggest those.
I prefer the ones from Greg Watson, mostly because they are so inexpensive, and you can kind of tailor your fertilizing wth them. I'm not very familiar with the Seachem and other premade ones...

30g planted with cories, white clouds, Harlequin Rasboras ,ottos.
10g planted with glowlight tetras and an otto.
Outdoor pond with one common goldfish and comets.
5.5g with endlers.
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post #3 of 4 (permalink) Old 05-13-2005, 08:53 PM
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You can certainly use the Seachem line. Some may prefer this strategy for smaller, low light tanks. I think the Greg Watson ferts would be cheaper for most in the long run.

You ask if you need phosphate. Your tap water has a lot. I might be tempted to forego ordering the phosphate and test your water to see if your plants are phosphate hogs. If you do need phosphate you can always use a Fleet enema. I have been using the same enema for about 2 months and have lots left. Now, sources of K may be a bit harder to find locally. So you may wish to add some K2SO4 to your order so you have some on hand if you find you need to use it in the future. Currently I use KNO3 powder but am not adding any K2SO4, though I have some on hand.

So why not order some trace mix, KNO3, and K2SO4 in powder form.
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post #4 of 4 (permalink) Old 05-16-2005, 04:52 PM
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Your Kh is a bit low for injecting CO2. It should be 3dKh or above for safe CO2 injection. It looks like you're at 1.5dKh.
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