Regardless of what nutrient vendor you choose, I'm of the belief that using supplements from the same vendor is the most effective and easily managed, unless you are highly experienced & well educated in plant biology. You made a wise choice by picking products from one vendor.
That chart
you posted was extremely helpful since I'm not a Canna user. It provides the proper ratios for Canna products & factors in which additives have how much N-P-K etc. In short, Canna has done the hard work for you. And the option to establish a "light" feeding regimen is a plus as well.
So DO mix them per the ratios on your chart and DO dilute them to your sweet spot.
Do NOT drop your base nutes to "make room" for the additives.
More thoughts toward the future of your plant - a "light" feed regimen will not always provide the most robust results, so you need to monitor your system closely. And that should not be as hard as some would believe if you keep two things in mind:
[HASHTAG]#1[/HASHTAG] - pH is EVERYTHING in hydro and you DO want it to fluctuate. You'll hear large ranges - for example Canna says between 5.2 and 6.2. I think that might be OK for turnips and rutabagas but for weed I want to see my ranges controlled within the 5.7 / 5.8 to 6.1 / 6.2 range. Maybe I'm being anal but that's what I've always done, and that has always prevented any problems for me.
Something as simple as aerating your water before adding nutes will help stabilize pH by eliminating carbon dioxide from the water. Bad bacteria will cause a rapid drop & this can be a clue that a problem is starting.
Practically every nutrient and additive has the ability to affect pH.
Even nutrient strength will affect pH, so on to :
[HASHTAG]#2[/HASHTAG] - Monitor your ec/ppm as religiously as you do pH.
The golden strength rule is, if you see ppm's go up as the plant consumes nutes, that is saying the plant consumed more water than nutes & the mix is too strong. If ppm's head downward, the mix is too weak. Either way the plant is creating an imbalance.
And plants uptake water and nutrients at different rates. Growing? Heavy N uptake. Blooming? Heavy P-K uptake. In between and at the end? Nobody knows. Over time
this can create an imbalance which may present as changes in pH (the first sign something is going wrong).
There is no practical way to measure nutrient imbalance, it won't show up as a change in ec/ppm. So anytime a large pH shift occurs, consider that it may be coming from an imbalance. It's best to dump and start fresh.
Well researched feed charts like the one you have go a long way toward preventing problems caused by nutrient strength or imbalance between elements. And
Canna provides some very good advice for nute strength:
"It is advisable to start with an EC that is between 0.8 and 1.0 higher than the EC (ppm values) from the water supply and to gradually raise this as necessary to a maximum of 1.3-1.7 above the water supply’s EC (ppm values). Keeping a regular check on the nutrient solution’s pH, EC and ppm levels and observing the plants is necessary to be able to take the correct action at the correct time. "
So with 0.5 water you would start around ec1.3 to 1.5 veg, and move up to 2.2 bloom.
Canna's chart amounts are reasonable & coincidentally stop at ec2.2 I would not be afraid to go higher - just listen to the plant and don't prescribe to any preconceived notions. She will tell you what she wants if you follow these rules. J
ust maintain the proper ratios by increasing or decreasing the water - to - nute mix.
