Nutrition!

First time growing! Its more like experiment to see how good i can do
So i started with something small and relative easy, BerryRyder (Auto) Shes is almost 2inncehes out in 8 days from seed, very simple home setup 70W light bulb and table went.

So the question when should i start apply fertilizer?

2nd i have some left over form Bonsai tree fertilizer! wil that work? NPK 6;4;5
6% (N) Nitogen
4% (P[SUB]2[/SUB]O[SUB]5[/SUB])
5% (K[SUB]2[/SUB]O)
Is the Oxigen is factor there? i think it just means that it desolves in water?! (should have paid more attention in chemistry lessons)

Mikroelements
0,01% (B) Boron
0,02% (Cu) Copper
0,02% (Fu) Iron
0,01% (Mn) Manganese
0,001% (Mo) Molybdenum (have doubts bout this)
0,002% (Zn) Zinc

Just dont want to hurt my plant, is there anything what could do that?

Dont feed it yet youll burn it, the lil circle leaves contain nutes

ty lol...I know that much

but it didnt answer my question in any way.

On fertilizer labels, the phosphorous and potassium contents are usually described as the oxide equivalents, whereas Nitrogen is listed as the min. total elemental content and may further specify the insoluble/soluble or ammonia/nitrate nitrogen contents.