The ginormous at 0-18-16 is probably a good fit right now. Another option for you would be
Earth Juice Bloom (a basic Bone Meal organic tea concentrate).
I agree that
Hygrozyme and
Liquid Karma are totally different products. Of all the "mystical" over priced snake-oil magic potion stuff on the market this one product has found its way into my heart.
Something to be mindful of is that the LK, despite having low listed element concentrations, has a very high natural EC. It registers ~9x the promised levels on the bottle which can assure you there is much more to this system than meets the eye. By removing this product and increasing the overall EC you're actually using a considerable amount more food now than you had been when using the LK.
At 10ml/gallon LK registers a .3 increase in my EC.
Hygrozyme is good stuff for recirculating reservoirs and hydroponics. I think it's better suited to systems that have a harder time with root health like NFT and DWC, where "slime" is an issue. In coco, I don't think it's going to hurt anything, but I think there might be more efficient places to put your cash. For myself, and many others, a few $$ here and there for peace of mind and to fulfill my curiosity isn't a big deal. Gotta love the experimental spirits!
Knowing that you already have the
Liquid Karma I will suggest adding that back into your system at full strength. The Potassium it contains will help, but so will the
yucca extract, fulvic acid, and b-vitamins (plus whatever the hell else they put in there). I buy the stuff by the gallon now, up until recently I used as much LK as I do A+B combined.
If your garden was my garden and I had the 5-0-0, the Ginormous and the
Liquid Karma, then I'd be running something like:
3ml of the 5-0-0, 1ml Ginormous, and 10ml
Liquid Karma
Runoff to excess, checking the EC of the runoff until it is at the least under 2.0ec.
This will be balanced, not too strong, and with a good organic base (LK is designed to help reduce stress, and your plant could use a "vacation"). I find that when you start mixing a few things together it's best to start applying some ratios. If you get "18p" and "16k"from 1ml of Ginormous then you'll need 3ml of the 5-0-0 to get "15p" in the solution. Add in the LK and the final ratio is really balanced, maybe a little potassium dominated, but only by a handful of ppm.
Try to work you ratios like that when you mix things and you'll see some improvement. Aim for balance at first, then you can react to problems as they arise, but always change your ratios slowly over time. Drastic changes can cause more problems and a terrible amount of confusion. Slow and steady in that regard.
For the time being, heat and potassium, that's the focus. Then you can handle what comes next.