which fert should I use?
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which fert should I use?

This is a discussion on which fert should I use? within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Okay I found two. (The store I went to online had about 10, but after reading ingrediants and reviews, I've narrowed down to two...) ...

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which fert should I use?
Old 05-28-2010, 12:17 PM   #1
 
redchigh's Avatar
 
which fert should I use?

Okay I found two.
(The store I went to online had about 10, but after reading ingrediants and reviews, I've narrowed down to two...)

Florinmulti Fertilizer for Planted Freshwater Aquariums - 250 mL - 8.5 oz.

Brightwell Aquatics
Now Only: $5.09

Source of nutrients:
Potassium sulfate, calcium chloride, magnesium sulfate, potassium iodide, iron EDTA, zinc sulfate, manganese chloride, sodium tetraborate, copper sulfate, cobalt chloride, sodium molybdate.
Other ingredients:
Purified water, nickel chloride.

Guaranteed Analysis:
Potassium as soluble potash - (min) 0.48%
Boron - 0.00006%
Carbon - 0.005%
Calcium - 0.14%
Chlorine - 0.39%
Cobalt - 0.000009%
Copper - 0.00003%
Iron - 0.003%
Magnesium - 0.05%
Manganese - 0.0002%
Molybdenum - 0.000009%
Sulfur - 0.16%
Zinc - 0.0004%

------------------------------------------------------

Flourish - 8.45 oz. - 250 mL

Seachem
Now Only: $5.59

Total Nitrogen 0.07%
Available Phosphate ( P2O5) 0.01%
Calcium (Ca) 0.14%
Magnesium (Mg) 0.11%
Sulfur (S) 0.2773%
Boron (B) 0.009%
Chlorine (Cl) 1.15%
Cobalt (Co) 0.0004%
Copper (Cu) 0.0001%
Iron (Fe) 0.32%
Manganese (Mn) 0.0118%
Molybdenum (Mo) 0.0009%
Sodium (Na) 0.13%
Zinc (Zn) 0.0007%


I know the flourish has more of a following.. (I'm pointing at Byron. ;) )
but I'm caught up on two details that might be too minor to take into account...

1. Flourish has nitrogen-
Is nitrogen supplementation neccesary? Seems redundant to add ammonium to a fish tank. (assuming it's ammonium, but be nitrate. Regardless.)

2. Flourish has 4x more chlorine. Seems harmful to add dechlorinator, wait a day or two, and then add a fertiliser with chlorine. The .50 cent price difference is negligable, but which should I go with?

3. Florinmulti also has carbon (I know, not all plants can assimilate it most likely, but seems like it would help...)

4. Per instructions on bottle, seems like flourish would last a bit longer... (flourish is 5ml per 50 gallons, florinmulti is 5ml per 60 gallons. How many drops would I need in a 10 gallon? Something like 1 drop for every 2 gallons? I might actually add up how many drops are in a ml and post it if anyone is interested.)
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Old 05-28-2010, 01:39 PM   #2
 
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i vote seachem's Flourish Comprehensive all the way. I also liked their root tabs if you have rooted plants
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Old 05-28-2010, 02:55 PM   #3
 
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well I plan on having an enriched substrate, so I don't think I'll need root tabs.

I'm going with a hybrid idea- soil, laterite clay, and inert gravel.
(soil for the nutrients, and clay for the high cation exchange. Will be similiar to diana walstead's soil technique, but with an organic potting mix mixed with some laterite clay a bit of black sand, with an inch or so of black sand on top.)
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Old 05-29-2010, 11:24 AM   #4
 
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With an enriched substrate, root tabs are un-necessary, until of course such time as the nutrients in the substrate give out (years?).

As for the two products, they are similar. I have used Flourish, but I have never seen the other. I would certainly try it if I did see it. While most of the ingredients (nutrients) are the same, the percentages sometimes differ and on the whole I never bother about this; though I would point out that Flourish has higher iron which is good for swords and crypts. However, I agree, nitrogen is not necessary as the fish produce sufficient ammonia/ammonium to satisfy the plants. One thing I do like about the Florinmulti is that it has potassium which is an important nutrient. I have often considered this myself with my Flourish, although my plants seem to be doing well, from which I conclude it must be coming from somewhere since it is an essential nutrient.

If I had the option, I would get a small bottle of the Florinmulti and use it for say 2 months; that is sufficient to notice differences either way. I have myself experimented with a couple different fertilizers like this.

Byron.
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Old 05-29-2010, 12:13 PM   #5
 
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Hmm. I'll see if I can get both. I have two ten gallons I'm not using, so I'll give both of them the exact same substrate and similiar plants, and do a side by side comparison. I'll probably use both on my 50G and alternate them. (I think I'm going to make the 10s into shrimp and plant farms after all. Not set in stone, but it's an interesting idea with the ferts.)

Lets see... 2 months for the 50G would be about 40ml, so no problem with me getting the smallest bottle available for both. Would probably be about the same price.

Whatever I do, thanks for the input. :)
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Old 06-01-2010, 09:34 AM   #6
 
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I'd also give the other one a shot. What I had found on the 55g with any ferts (I had used Flourish back then) dep on the water conditioner you are using on your tanks its highly recommendable that you wait 24hrs AFTER the w/c to add your fert which ever that one may be. Lotys of the conditioners desolve some of the fert's contents I learned and therefore you plants will get "more" out of the fert if you dose it a day after the w/c so they can make full use of ALL ingredients.
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Old 06-03-2010, 03:39 PM   #7
 
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Quote:
Originally Posted by Angel079 View Post
on the water conditioner you are using on your tanks its highly recommendable that you wait 24hrs AFTER the w/c to add your fert which ever that one may be. Lotys of the conditioners desolve some of the fert's contents I learned and therefore you plants will get "more" out of the fert if you dose it a day after the w/c so they can make full use of ALL ingredients.
I second this.

I used Flourish for the whole tank (55g) and API Root Tabs for my Argentine Swords with great success.
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