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Originally Posted by email468
FloraNova Grow is fine by itself for veg and FloraNova Bloom is for flowering - also fine by itself. You should start adding nutes with a light hand - 300 PPM (or less) then maybe 450-500 PPM (or less) and any sign of nute burn (yellowing or crispy leaves) and you've added too many nutes. The main idea being start slow and add nutes a little at a time (week to week).
When you switch to Bloom formula (could be right when you switch your lights to 12/12 or a week after), start out with
Originally Posted by jact55
for co2 dry ice may work, i am not sure. this is what you can do also. take a gallon jug and poke a pencil size hole in the lid. put 5 cups of sugar in the jug a few tablespoons of yeast. fill the jug half full with water and let the mixture dissolve, shake often. in a couple days you should have co2. you will have to change this mixture regularly but it is easy and cheap. there is a growfaq on this method that may explain it better. good luck
Originally Posted by Uncle Ben
Based on quite a few questions about topping I've received here: http://www.rollitup.org/general-mari...-101-a-12.html I decided to reproduce a thread on my favorite topping method published at cann.com about 10 years ago. Even though I've got much better photos from many latter grows both indoor and outdoor, I'm gonna stick with the old photos from the original thread. Lighting is HPS from start to finish with the exception of using 4' long shop