I got bio grow bloom and top max here should I hit them with any of those or they not what you're talking about?
Struggling to find dyna gro protect here in the uk
Not up on nutes (obviously hence the problem)
Foolishly thought could just plant in all mix and water
Live n learn
Yes, if you already have bloom food then start using it. I checked the npk on the bloom and its a little strange but if you mix it with the top max it might? Make a more even npk i would hope....Feed every second or third watering at about 70% of what they reccomend. (Youre plants pretty small compared to what a full dose would feed) Also you may want to feed two times in a row and then every other time after that. The plant wont heal itself but the damage should stop from getting much worse.
Next grow, when those plants get over 12" tall start feeding them. Always start really low and then work your way up. You totally dont have to feed every time. And you also dont have to feed at full strength. The plant should guide you as to how much to feed it. If there's yellowing you arent feeding enough, or arent feeding enough of something specific.
If its getting almost black green, or the leaves are starting to claw, or the tips are burning, you are over feeding.
Thats how to watch the plant to read if youre over or under feeding. They dont come with dipsticks like cars to check the oil but theyll still tell you if they need things if you can learn what to look for.
The way i feed is i start nutrients in soil after plants are about a foot. A couple weeks later i start adding a calmag supplement. I run grow (n heavy) food until week 3.5 of flower and then i mix grow/bloom 50/50 for a week and then do a pk boost with bloom food for about weekish to week 6.5. Then its back to bloom nutes but ill keep lowering them until the end. I also drop the calmag for the last weekish. Plants dont eat much at the end but they still eat! So dont just flush with water and starve it when its trying to bulk the last couple weeks.
Thats how i do it. Im not suggesting you do exactly what i do. I just gave you an idea on what feeding is all about. Now just remember its the soil that grows the plant and not the fertilizer and youll be fine. Its always better to under feed a bit than over feed a lot. Unfortunately youve underfed a lot which believe it or not is an uncommon problem, most people over feed.