Which fertilizer do you recommend for conifers?

[ShimpakuBonsai]

Untill now I have only used very cheap fertilizer (at the cost of around € 1,00 per kilo) for my bonsai trees and most of my trees are conifers like junipers and pines.
The mayority of my trees are still relatively young but I also have a few more devoloped mature trees.

The younger trees seem to do well with the cheap fertilizer but I want to be sure to use the good stuff for my more devoloped trees.
I've been reading about fertilizer and there are a few very well known brands like Bio Gold, Joy Tamahi and Hanagokoro to name a few.
I also saw that there are large price differences between the shops who sell the brand name fertilizer mentioned above.

Does anybody have any experience with the tamahi fertilizer from Ibuki Shop from Poland?
It is slightly cheaper than the original Joy Tamahi fertilizer.
I'm thinking of buying a bunch of bonsai wire from Ibuki and maybe I can add some fertilizer to the order.

Which fertilizer do you guys use and/or recommend for conifers in a more devoloped stage?

 

[HandyGringo]

I use Tamahi from Ibuki, works very well. Also, use saidung and fertipads (From Yama Bonsai). Trying different things. But those are the three I see recommended a lot by my local Bonsai experts.

They also all swear by using fish/kelp liquid feed every once in a while. I don't know a lot of people who use biogold, I get the impression that it's overpriced.