My two grow issues!! Troubleshooting form filled out

[Rusty Trichome]

Weeks 1-7
Grow/Micro/Bloom 4mls/litre

One application per week, isn't it?

Weeks 2-5 Add Big Bud 2mls/litre

Again...per week?

So one day water, the next feed. We've been adjusting how much water they get so they only get enough so they are slightly dry before the next water.

- Should we maybe be going every two days and giving slightly more but letting them dry out a bit more in between?

I'm pretty sure you're supposed to feed once a week at recommended dosages, and water till a slight runoff in between if necessary. At least that's how all the other nutrients I've worked with are. You have to get the water and nutrients down to the lower root zone, too. Otherwise the nutrients and salts tend to build-up to toxic levels.