Base nutrients are the most important nutrient choice with your plants. Most product lines are designed to work in conjunction with their whole line. When selecting yours you should focus on ones that best suite the needs to the plants you are growing.
We have found that two part formulas work better than one part formulas. In one part, there are many agents in the formula that cause build ups and especially in hydroponics systems will lead to clogged tubing. With two part formulas, the agents are removed as they are not needed. This also means that the nutrients are made more readily available for the plants to intake. Also be sure to look for a nutrient with no dyes or additives. These are not beneficial for your plants and can often do more damage than good.
Lastly, you want to make sure you choose a nutrient line that is easy to use, and the supplements work well in combination with base nutrients. Often ones that feature fortifier’s and other products which are specifically designed to do certain aspects for your plants will gain better results than all in one formulas.

From our testing, we have found that Dutch Nutrient Formula takes care of all of the items listed above.
You can purchase their base A & B Grow and Bloom formulas online here.
Or buy direct from Homegrown Hydroponics at Homegrown.ca