Maximise Plant Growth with ISN Microbe Boost

ISN Microbe Boost is a powerful organic probiotic specifically formulated to enhance your plants' growth by improving root development, eliminating salt build-up, and increasing nutrient absorption. With ISN Microbe Boost, you can ensure healthier, stronger plants with larger yields at the end.

Features and Benefits

  • Rapid root growth: ISN Microbe Boost fosters substantial root development from the first week of use.
  • Prevents salt build-up: It effectively softens inorganic salts present in the roots, preventing accumulation and promoting overall plant health.
  • Breaks down dead root mass: ISN Microbe Boost consumes dead root mass and increases dissolved oxygen levels, leading to healthier root systems.
  • Waste conversion: The organic probiotics transform waste products into nourishment for optimal plant growth.
  • Foliar spray benefits: When used as a foliar spray, ISN Microbe Boost stimulates healthy leaf growth, increased flower production, amplified yield sizes, and helps combat pests.

How to Use

  1. Begin applying ISN Microbe Boost from week 1 of your plant's growth cycle.
  2. Add the recommended dosage of ISN Microbe Boost to the water or nutrient mix to support root development.
  3. Continuously use ISN Microbe Boost throughout the growth period to aid in root health, nutrient absorption, and waste conversion.
  4. For foliar applications, spray it directly onto the leaves of your plants according to the provided instructions and recommendations.

Aqua Gardening Suggests These are Best For

ISN Microbe Boost is ideal for gardeners aiming to promote healthy, strong plants with increased yields. It is perfect for use in indoor or outdoor gardens, as well as hydroponic systems that may be susceptible to salt build-up or nutrient imbalances. The versatile formula can be used on a wide range of plants, making it a valuable addition to any gardener's toolkit.


What is ISN Microbe Boost and how does it benefit my plants?

ISN Microbe Boost is an organic probiotic solution designed to promote healthy plant growth by improving root growth, nutrient uptake, and overall plant health. By using ISN Microbe Boost from week 1, you will rapidly see enhanced root growth, healthier plants, and ultimately bigger yields.

How does ISN Microbe Boost prevent salt build-up in the root zone?

ISN Microbe Boost works by 'softening' all the inorganic salts in the roots and flushing them out. This process prevents salt build-up, leading to healthier plants and improved nutrient uptake.

Can ISN Microbe Boost consume dead root mass?

Yes, ISN Microbe Boost can consume dead root mass, thereby increasing dissolved oxygen levels in the root zone and promoting healthy root mass growth.

How do the microbes in ISN Microbe Boost convert waste products?

The microbes in ISN Microbe Boost convert waste products into healthy organic nourishment for the plant, ensuring efficient nutrient uptake and better overall plant health.

Can ISN Microbe Boost be used as a foliar spray? If so, what are the benefits?

Yes, ISN Microbe Boost can be used as a foliar spray. This application method can trigger healthy leaf growth, increase flower sites, boost yield sizes, and fight off unwanted pests, leading to stronger and more productive plants.

Still Unsure if This Product is Right for You?

  • Submit a question via the Reviews & Questions tab on this page, and our team will respond to you
  • Login to check your Aqua Gardening Member Price
  • Book a free Consult with the Aqua Gardening team here
  • Still Overwhelmed? Start your Gardening Journey with a free eBook here


Product Manual

View PDF brochure for ISN Booster (Microbe) 1L


Shipping Calculator

Enter the quantity of product and your Australian suburb name to calculate the shipping costs for multiples of this item only. You can calculate the shipping costs for your entire order, including international orders, on the Cart Page.

Free Shipping Eligibility

Aqua Gardening offers free shipping on most orders above $249 that are not bulky items.  Once you place all the items you wish to buy in the cart, the combined shipping price will be shown in the cart, including Free Shipping if you are eligible. For full details please see our free shipping eligibility here.

Delivery Information

Back Order products

These are products we usually carry in stock but are temporary out of stock. These products will be back in stock within a few days. We can send you an email notification when they are back in stock if you click on the “Notify me when back in stock” link. See the full details here.

Click & Collect Only products

These products can only be collected from our Brisbane showroom as we can not ship them. If you place any of these products in your cart, you will only see the Click & Collect option at the checkout.

Fast Dispatch products

These are products that we have in stock in our Brisbane showroom, and they are available for immediate Click & Collect or Shipping. Keep in mind that if you have a product which is not listed as a Fast Dispatch product in your cart, there might be a delay on your order. See the full details here.

Special Order products

Special Order products are products that we do not regularly stock. These products will be ordered specially for you, or dispatched directly to you from our supplier. See the full details here.

Ship-To-Store products

Products marked with ship-to-store can still be shipped to us to collect in-store! Simply check out with the shipping address: 3/4 Billabong Street, Stafford, QLD, 4053. Once your order arrives, we’ll email you to let you know that it is ready to collect.


Limited Warranty - This product has been stored in a controlled environment to ensure you will receive the best quality product possible. Due to this reason this product is sold on a strict no refund or return policy, unless it falls under a warranty claim.


60 Day Returns - Not available for this product, please contact us if you have any issues. More details...