Is 5.0-3.0-8.0 a good NPK??

[DogtowN]

so it would still be fine to use this??

IMO Fine for the first couple weeks of flower, after that you want something with a lower N content.

GG mentions 2-3-5 <--- You want the lowest number to be the N :thumbsup:

If the 5-3-8 is all you have, use it. You just have to make extra sure to flush before harvest and let the plant use up its stash. N tastes $hitty.

Jacks Classic "Blossom Booster" is a good, cheap, flower fertilizer, 10-30-20. They sell that stuff damn near everywhere.