24/1/22 We're still open (*but closed Wednesday for Australia day) / Call us on arrival for Direct to Boot if needed / 97%+ Orders dispatched within 4 working hours / Post and Couriers improved delivery times but we are cautious on transit time so order a bit before it gets urgent / We are open as usual in line with all QLD health directives. See about us at bottom of the page for more details.
Optimum is one of our popular nutrients. We have sold it since 1991 and it has always been a safe nutrient brand. Available as Optimum Grow and Optimum Bloom for the leafy and flower/fruiting stages respectively.
It is a complete and balanced A and B pack and is suitable for hydroponic systems with clay, perlite or rockwool growing media. It can also be used in Coconut coir if needed, but an GT Coco specific nutrient is available also. We first started selling Optimum in 1991 and its been popular all that time.
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Backorders are products that are on their way to us from suppliers.
Backorders will be dispatched to you as soon as they arrive - usually in 1-7 days
We will send you an ETA as soon as we can, and you can cancel the backorder and get a full refund if you want to.
Do you wish to proceed knowing there will be a delay of around 1-7 days?
(If you have urgent items as well as Backorder items, please send as two separate orders so the urgent items go out immediately.)
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