Additive: vitamins+humic acid. Dosage?

[cavycat]

Hey,
I've bought a general fertilizer additive to add to my feeding regimen. Problem is the dosage instructions seem high as they're meant to be used on large crops (min 10ml per litre).
I grow mostly Phals in s/h.

Here's the analysis:

organic matter (dry content) 20%
aminoacids 22 %
humic acid 6%
vitamins <1.0%

How much should I add?

Thanks

[Ray]

It looks to me like it would be fine at the 1% solution recommended.