BioBizz Top-Max

BioBizz Top-Max (Top·Max™) is an organic flowering stimulator based on humic and fulvic acids. It helps increase the size and weight of flower clusters, improves nutrient uptake and gives sweeter, smoother-tasting crops.

Key benefits

• Humic acids from Leonardite free up calcium, iron and magnesium in the soil
• Fulvic acids attract nutrients and minerals to the roots
• Stimulates the plant's metabolism through the flowering period
• Works especially well with BioBizz substrates
• Suitable for soil, coco and hydroponic systems

How to use

• Shake well before use.
• Use throughout the flowering period.
• Start at 1 ml per litre of water in the first weeks of flowering, rising to 4 ml per litre as harvest approaches and before flushing.
• Follow the official Nutrient Schedule below for week-by-week rates.

Sizes

• 500ml bottle
• 1 litre bottle
• 5 litre can

Feed chart

BioBizz publish two official week-by-week Nutrient Schedules, one for All-Mix and one for Light-Mix or Coco-Mix, showing how Top-Max fits into the full range. Both official 2026 BioBizz Nutrient Schedules (All-Mix, and Light-Mix or Coco-Mix) are shown in the product images.

• BioBizz Nutrient Schedule 2026: All-Mix and Light-Mix / Coco-Mix schedules (PDF)
• Peat-free growing: BioBizz peat-free Nutrient Schedule

Feed charts are a guide only; adjust to your plants, water and conditions.

More information: BioBizz Top-Max on biobizz.com · BioBizz Top-Max product data sheet (PDF).

Delivery:

Dispatch cut off point 12:00pm

(if you order after this time you item will be dispatched the following working day)

Free carriage only apply's to the below if we can use royal mail if the item is to large we will call to discuss as there is other options available.

Postcodes Highlands: FK17-22, G83, IV1-28, IV33-39, KW1-3, KW5-14, PA21-33, PA35-40, PH18-26, PH30-42, AB44-56, IV30-32Islands: HS1-9, IV40-51,IV55-56,KA27,KA28,KW15-17,PA20,PA34,PA41-48,PA60-78,PH42-44,ZE1-3, JE, GY, IM, TR21-25 (ALL ISLANDS APPLY) Northen Ireland: BT