Is this a good mix to purchase??

I can purchase the following all ready mixed bag of organic soil. Is there anything lacking in the soil that I should add? Any advice or tips would be appreciated.

25L coco peat,
25L perlite,
400g Turbo Gro,
200g Bat Guano,
200g Dolomite Lime,
200g Rock Phosphate.

Cheers
 
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