In StockBiobizz Fish Mix
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Description
Biobizz Fish Mix is a complete, all-organic fertiliser designed for use with all soil mixtures. As one of the first organic fertilisers to hit the Netherlands, Fish Mix has steadily built an international reputation as being an outstanding plant fertiliser. Even with todays competitive market, it is still considered one of the best organic products out there.
With an NPK ratio of 5-1-4, Fish Mix is primarily designed for use during the vegetative stage of growth but can be used all the way through flowering and fruiting to encourage healthy green foliage. It can be used as either a soil drench or a foliar spray and contains no chemical additives whatsoever, just pure natural goodness.
Fish Mix is entirely derived from organic fish emulsion from the North Sea and Dutch sugar beet extract. As a large amount of this fertiliser is derived from fish, naturally, in its concentrated form it does smell rather fishy.
However, once diluted into water and mixed up for feeding, the pungent smell does diminish slightly and providing you have adequate ventilation/odour control inside, you can safely use Fish Mix inside as well as outside without running the risk of overpowering your growing environment with the smell of fish.
Fish Mix works by boosting the growth of beneficial organisms in the soil, which in turn increases the available nutrients and helps to accelerate the growth of your plants. It can be used to replenish old or poor quality soil with microbial life and can be used to fatten up soil, stimulating microbial activity.
Key features of Fish Mix include:
- Fully organic complete plant fertiliser
- Stimulates microbes and accelerates vegetative growth
- Can be used as a soil drench and foliar spray
- A product of leading Dutch organic manufacturer Biobizz
Our Opinion:
Organic growers tend to choose from two main growth feeds, Biobizz Grow and Biobizz Fish Mix. Both are great at stimulating biological activity in the soil and encouraging healthy growth and development. We highly recommend Fish Mix and the only real downside is the pungent odour. If you intend to use Fish Mix indoors just make sure you have good ventilation/odour control. Overall, Fish Mix is one of the best organic products out there.
Key facts
| Type | Organic liquid fertiliser for growth |
|---|---|
| NPK | 5-1-4 |
| Made from | Fish emulsion from the North Sea and Dutch sugar beet extract |
| Growing medium | All soil mixes |
| Use as | A soil drench or a foliar spray |
| Dose | 1 to 4 ml per litre in Light Mix or Coco Mix; 1 to 3 ml per litre in All Mix |
| Dose source | Biobizz 2026 UK nutrient schedule |
| Sizes | 500 ml, 1, 5 and 10 litres |
| Brand | Biobizz |
| Category | Growth/Bloom Stims |
How to use
Add Fish Mix to the water at the dose for the week. In Light Mix or Coco Mix, Biobizz's schedule starts at 2 ml per litre, rises to 4 ml per litre in the first weeks of flowering and falls back to 1 ml per litre by the end. In All Mix, which is pre-fertilised, it stays at about 2 ml per litre.
As a foliar spray, Biobizz suggest 1 to 2 ml per litre, 1 to 3 times a week, up to the second week of flowering.
- Fish Mix and Bio Grow do the same job: use one or the other, not both.
- It smells of fish in the bottle. Once diluted the smell drops, but indoors you will want good ventilation or odour control.
The full schedule is in the Biobizz feed chart.
Questions
Should I use Fish Mix or Bio Grow?
One or the other, not both: they do the same job. Fish Mix is made for the vegetative stage. Biobizz suggest switching to Bio Grow for flowering, as it also feeds the beneficial microbes in the soil.
Does Fish Mix smell?
Yes, in its concentrated form it smells fishy. Diluted for feeding the smell drops, and with good ventilation or odour control it can be used indoors.
Can I spray Fish Mix on the leaves?
Yes. It works as a soil drench or a foliar spray. Biobizz suggest 1 to 2 ml per litre, 1 to 3 times a week, until the second week of flowering.
