I’ve only ever used them both together at 1/4 teaspoon of each per gallon of water once every 10-14 days at most. I’ve seen others say they use the same strength as I do at “every watering”. I don’t know that they need to water twice a week, though.

robinswfl: I don't know why I didn't see your response at the time. Pro-Tekt has a soluble silicon that is absorbed by the plants, especially so in new growth. It's supposed to make the plant stronger, more resistant to bug infestations, and more resilient to wind and not enough watering. There's really no way for me to tell with the naked eye if it's working or not. I stopped fertilizing for a few months, but resumed in March. I plan on continuing to do so indefinitely

Manuel, I saw your comment on this. It will be interesting to know what kind of growth/ health and success you have with this soluble silicon. I admit to having become a very lazy hobbyist/gardener. I just counted over the weekend -- and have 83 succulent plants on my back lanai. Used to be that most were in small pots (3" or 4" pots generally), but many have grown and been repotted into 6" or even 8" pots. I start giving them away when they get to be that size. We joke that every plant in Florida really WANTS to become a tree. It's probably true.

But being lazy, I just stay with saving gallon water jugs, filling them with tap water, and tossing in a small amount of Foliage Pro 9-3-6. Probably MORE than the 1/4 teaspoon I estimated. That said, I only use this concoction for plants in NON-SOIL based mixes -- but I use it at every watering because otherwise, they get ZERO nutrients. I guess it's working. On Saturday, I just repotted a Euphorbia lactea cristata (green one, not the white kind) from a 3" pot to a 4.5" pot. I bought online last October, and already the roots were growing out the bottom drainage hole! Yay!

You will have the summer months to fertilize, and I bet by fall you WILL be able to tell, with the naked eye, how well the silicon is working and what results it generated. If you would, please let us know your observations. It's always interesting to hear what has delivered success and growth for growers.