Can i use Alaska morbloom on my plants? Its npk is...

Fish water will be good for veg and first few weeks of flowering, morbloom will be nice for flowering from the point there is calyx and psitil on all apex. Keep in mind that's what make able a plant to absorb and transform more nutrient is a bigger light coupled with enriched CO2 environnement, as your light seem pretty weak start with1/2 dose of what's recommanded on the bottles. Do yourself a favor and get a cheaper HPS(hid) or mars hydro,vipar spectra or spider farmer led All the best

Alaska morbloom is basically a PK booster. would be good in flower and used once around transplant. I don't know what level 5 is. Other thing to note is your plants are stretching a lot between nodes and that's a sign they want the light closer. IDK if its a true 600W like its stated in your diary. Good Luck!