Mini Measure Shot Glass, 12 per pack grow-light-bulbs Aerorock is a much better

Aerorock is a much better alternative to perlite

and quick start guide

During the lights on cycle

This gives you a buffer on the watering times but still allows you to feed regularly without over watering

Use it for trees and shrubs

Mini Measure Shot Glass, 12 per pack grow-light-bulbs Aerorock is a much betterMeasure for measure, the Hydrofarm Mini Measure Shot Glass is ideal for home, lawn, garden, or kitchen. It features dishwasher safe construction, permanent markings, high visibility, and a heavy base to reduce tipping. Use the shot glass to measure water, nutrients, and other liquids in teaspoons, tablespoons, ounces, and milliliters.