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Thread: Miracle gro fertilizer? Reply to Thread
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Topic Review (Newest First)
01-29-2013 11:38 PM
Darkblade48
Quote:
Originally Posted by happi View Post
i dose urea and NH4 with german blue rams in the tank, they also bread many times in the same tank. plant also grew better with urea and nitrate combination.

http://www.plantedtank.net/forums/sh...d.php?t=179668
Glad that it worked out for you.

As I mentioned, some people have used urea successfully with no problems. It is a balancing game in the end.

Plants do uptake ammonia faster than nitrates, as that is their preferred nitrogen source. Theoretically, you could dose ammonia directly for even faster plant growth.
01-29-2013 10:49 PM
kochman I have used in past with no ill effects to livestock. i only stopped using it as i am now using a combination of organic hydroponic ferts and iron. I bought a jug and i dilute like crazy and all is fine.
01-29-2013 10:36 PM
danielt As far as my knowledge goes, excel is organic carbon. Not a fertilizer mix as it adds one Macro nutrient: Carbon
01-29-2013 10:12 PM
pmcarbrey Well I guess I can't just be lazy and use what I have on hand. I'll have to go out and buy a bottle of excel I suppose
01-29-2013 10:06 PM
Seattle_Aquarist
Quote:
Originally Posted by UDGags View Post
Probably no

Most contain urea (listed on back as ammonical nitrogen sometimes), which breaks down into ammonia.

And a good portion contain heavy metals, which are toxic as well. Check the contents of the one you want to buy here

http://agr.wa.gov/PestFert/Fertilize...ct1.aspx?ltr=M
Hi All,

UDGags is absolutely correct regarding the heavy metals.

I use Miracle Grow Water Soluble General Purpose for my emersed growth plants but I will not use the product in my aquariums because it contains: Arsenic, Cadmium, Cobalt, Mercury, Molybdenum, Nickel, Lead, and Cobalt (Co). I value my fish (or invertebrates) too much to do that.
01-29-2013 10:05 PM
happi
Quote:
Originally Posted by Darkblade48 View Post
As people have already mentioned, I would highly recommend you not using any (terrestrial) fertilizer that uses ammonical nitrogen (urea) as its nitrogen source, since it will become ammonia in your aquarium (at a pH of 8.6, there will essentially be no ammonium anion formation).

There have been people that have successfully dosed with urea, but I do not think they ever dosed when there was livestock in the aquarium.

i dose urea and NH4 with german blue rams in the tank, they also bread many times in the same tank. plant also grew better with urea and nitrate combination.

http://www.plantedtank.net/forums/sh...d.php?t=179668
01-29-2013 09:49 PM
danielt Your pH is not good for Urea. It is good for those heavy metals as they will stay in the water and not your creatures. Higher pH with heavy metals like Copper, Zinc, Lead is safer than acid pH which will ionize part of them and make them soluble in water. Plants will uptake those up until some point but they will be affected also. Long before your shrimp have died of Copper poisoning.

I did put Urea in my planted tank. But it is something like 0,5g in a HEAVILY planted 300L tank. No side effects.

I bought mine from the pharmacy as a white salt. Looks like Magnesium Sulfate (aka Epsom salt).
01-29-2013 09:38 PM
Darkblade48 As people have already mentioned, I would highly recommend you not using any (terrestrial) fertilizer that uses ammonical nitrogen (urea) as its nitrogen source, since it will become ammonia in your aquarium (at a pH of 8.6, there will essentially be no ammonium anion formation).

There have been people that have successfully dosed with urea, but I do not think they ever dosed when there was livestock in the aquarium.
01-29-2013 06:22 PM
UDGags
Quote:
Originally Posted by pmcarbrey View Post
Yep, that's it
The metals are so high...you better be careful.

I think 3% of the N is urea, which will be ammonia within seconds at your pH. Keep this in mind if you are going to dose with it.
01-29-2013 06:16 PM
happi
Quote:
Originally Posted by pmcarbrey View Post
Yep, that's it
N and P looks ok but K+ is low, which can be added separated through K2SO4, but there are so many other metals at higher rate which might not be suitable for planted tank.
01-29-2013 06:13 PM
pmcarbrey
Quote:
Originally Posted by UDGags View Post
Yep, that's it
01-29-2013 06:12 PM
UDGags
Quote:
Originally Posted by pmcarbrey View Post
How much do you dose? The all purpose is what I have
Which all purpose? like full name exact....
01-29-2013 06:04 PM
happi
Quote:
Originally Posted by pmcarbrey View Post
Ph out of the tap is 8.6, so no worries there, I'll go ahead and check the box I have lying around and see if it's any good!
i meant to say urea or ammonium based fert become problem if Ph is higher than 7. yours is already high enough to convert ammonium or urea into ammonia within seconds after adding to the water. i wouldn't suggest adding this fert in that parameter.
01-29-2013 05:50 PM
pmcarbrey
Quote:
Originally Posted by In.a.Box View Post
I use the All purpose plant food no problem.
Just dose small amount at a time. My is run on a auto fert dose-er ^^

I know a guy who been using it for yrs with snail, shrimp, fish, plant etc.
How much do you dose? The all purpose is what I have
01-29-2013 05:38 PM
In.a.Box I use the All purpose plant food no problem.
Just dose small amount at a time. My is run on a auto fert dose-er ^^

I know a guy who been using it for yrs with snail, shrimp, fish, plant etc.
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