Nutrient question, any advice??

I'm in flowering 3 weeks in running canna line including the canna boost, terra flores, and started using rock resinator from week 2 is this a kittle overkill is the rock resinator the same as canna boost feel like I might be over doing it getting some dead dropping off leaves at the bottoms of all the plants maybe adding far to much p&k could this cause dying leaves??

How much of the stuff have you been using, in mL/gal ? Canna boost shouldnt burn your plants, just your wallet. It’s like 0-0-1, with growth hormones (triacontanol) and is a fermented molasses product with beneficials. The canna line already has PK 13/14 as a booster, that they recommend only be used for about a week. You’re already almost at that point in the feed schedule anyway. The terra line is decent on its own and you really don’t need anything extra. What you bought (rock resinator 0-7-8 is redundant.

A mate that moved to Australia gave me like 2k worth or nutrients as he gave up growing he gave me 12ltrs of rock resinator and 10 ltrs of canna boost for free, been using canna boost at the recommended dosage of 400mls to my full 100ltr res and rock resinator i have been using at 1ml per ltr stated on the bottle

I use Armor Si (Potassium Silicate), Maxi (5-7g/gal depending on growth stage and plant) by General Hydroponics and RO Filtered water. I don't need gigablaster or purpinator additives.

Here's a pic right after lights went out. Silica, Maxibloom, plain water.