"roze korrels" fertiliser

For my regular house plants I use liquid "[URL="http://www.compo.be/consumer/roze_korrels_vloeibaar_nl_adl_3_1255.file]"roze korrels"[/URL] (NL/BE people might know it..).

it contains the following:

Solution of NPK fertilizer 7-5-6 with boron, copper, iron, manganese, molybdenum and zinc.
7% of total nitrogen (N)
2.9% nitrate nitrogen
2.7% ammonium nitrogen
1.4% urea nitrogen
5% of phosphorus pentoxide (P2O5) soluble in water
6% potassium oxide (K2O) soluble in water.

Would this be adequate for a cfl micro grow (soil) ?
Only found one other post in regards to this product and they say to add P and K during flowering, but since I'm a complete beginner I would like some confirmation.

For now I would like to stick to products I can pickup at the garden center (AVEVE), but any suggestions or advise is welcome.

(I honestly made an effort to check out drshrooms sticky, but my brain goes all homer-simpson when I read all of those formulas n numbers).

Bobje,
Probably OK, but you'll need to use tap for the Ca and Mg. You may need to supplement the Ca and Mg. Good luck. -granger

Thanks Granger2 !

Had a quick look through Alien's shop-page and found these 2:

Canna Magnesium MgSo4
Canna Calcium CA 15%

They are 9 euro's each for 1L bottle. Should I go for these or instead get an all in one
bloom additive (trying to keep costs down, so if there is one product that has it all
for less euros that would be awesome.)