current_variant.inventory_quantity 22 4 5
Most customers receive within 5-9 days
Root & Bloom Enhancer
Stack is a natural plant nutrient made from kelp extract. The nutrients in Stack encourage healthy growth and flowering. Stack gives the plant tools to reach its full genetic potential. When used as a foliar or root drench, Stack helps correct minor potassium deficiencies.
Instructions for use:
May be used as a foliar spray or root drench, one application weekly. Safe for use in irrigation systems. Stack contains organic ingredients and may separate in storage. Shake well before use.
Apply Stack from the final week of vegetative growth to week 4-5 of flowering, or once plants stop growing vertically.
Mix 1-2ml per gallon of water in a weekly mix. May be mixed with regular fertilizer recipe. Add last to reservoir.
Mix 7ml per gallon water and spray thoroughly once weekly. Spray with lights off and allow to dry before turning on. Do not spray past week 3 flower.
Mix 2ml per gallon water and bare root soak for 30-60 seconds prior to transplanting or water in solution after transplanting. Stack may reduce transplant stress and improves plant vigor.
Mix 4ml per gallon water and soak seed for 1-2 minutes before planting. Stack may increase germination rates and plant vigor.
application weekly. Safe for use in irrigation systems. Stack contains organic ingredients and may separate in storage. Shake well before use.
At Hydro Worlds, we are doing all we can to make sure your package arrive in a timely manner.
We offer these methods for shipping your orders:
FedEx Premium Shipping - 2-4 business days
UPS Ground Shipping - 3-7 business days
Shipping Methods & Transit Times
Most orders are shipped the same day or the next day, depending on what time we receive the order. It may take longer if we are temporarily out of stock. You can find estimated shipping time on the product page.
We are unable to edit orders once processed.
In the rare event that you experience a quality issue, please contact us right away. Images or video clearly showing the problem must be provided within a week of delivery, along with a detailed description and a photograph of your full packing slip. Refunds or credits are not guaranteed and are reviewed on a case by case basis. Hydro Worlds conducts strict quality control processes where orders are checked and verified before being processed and packed. If an issue is determined, we will do our best to satisfactorily resolve the matter at hand.
Stolen or lost packages
We are not responsible for stolen or lost packages, including those with a "Signature Release" on file. Please file a claim with the courier responsible for delivering your package.
Please ensure that your delivery address is correct, as we are not responsible for orders shipped to incorrect addresses or unclaimed. It is not possible to re-route a package once it has been shipped. If your package is returned due to an incorrect address, we can arrange a redelivery. However, a re-delivery fee will be charged for this service according to the carrier.
Shipping delays caused by courier issues, customs, import regulations, and weather conditions are possible and out of our control.