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Hi xev11,

I am not aware of individuals using Miracle Grow liquid for their aquariums. Some of us that grow emersed plants may use it. What is your application?
 

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Hi xev11,

I wouldn't risk my fish; a lot of the commercial fertilizers for garden use contain very toxic heavy metals. For example the first one on your list - Miracle Gro Organic All Purpose contains:

Arsenic - 3.43 ppm
Mercury - .0054 ppm
Cadmium - .838 ppm
Lead - 1.80 ppm

I would not risk my fish to try to save a couple $$ on plant food. I suggest using Seachem products or if you have several tanks or large tanks dosing using the EI method using the proper chemicals.
 
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