Pot of concentrated powdered bacteria Bactogen Aquatic Science for ponds, white lid and blue label

Concentrated bacteria powder for ponds, Bactogen

¥2,600

Pond volume	Price	Price per L	vs 6,000 L
3000 L	¥2,600	¥1	−100 %
6,000 L	¥3,100	¥517	—
12,000 L	¥4,900	¥408	−21 %
24,000 L	¥7,800	¥325	−37 %
40,000 L	¥10,100	¥253	−51 %

¥867 × 3 with no fees Klarna.

This powder of spore-forming bacteria, with minerals and trace elements, maintains the biological filtration of a garden pond. The dose is 2 scoops of 12.5 g per 5,000 litres, for 5 days in a row at start-up and then 3 to 4 times a month, once the water is above 10 °C.

Ref. NEOBAC003B·Bacteria

Pond volume : 3000 l

3000 L

6,000 L

12,000 L

24,000 L

40,000 L

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Delivery within 2 to 15 business days

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The summary

What you receive: a powder of spore-forming bacteria with minerals and trace elements, and its dosing system.
What it does: it maintains the pond's biological filtration season after season, rather than acting just once.
Dosage: 2 scoops of 12.5 g per 5,000 litres, for 5 days in a row at start-up, then 3 to 4 times a month.
To check beforehand: the pH and hardness of your water, to be corrected if necessary before seeding.
Powder, pearls or liquid: three ways of adding bacteria, with three different rhythms and routines.
Dispatch: small parcel, which can be combined with the rest of your order.

Spore-forming bacteria in powder form for the biological maintenance of a garden pond

Bactogen is a powder of spore-forming bacteria, enriched with minerals and trace elements, which maintains the biological filtration of a garden pond. The dose is 2 measures of 12.5 g per 5,000 litres, added for 5 days in a row at start-up, then 3 to 4 times a month once the water rises above 10 °C. Check the pH and hardness beforehand.

This powder contains spore-forming bacteria, that is, bacteria present as dormant spores, together with minerals and trace elements. The spores germinate on contact with the water in your pond. The dose is 2 scoops of 12.5 g per 5,000 litres, and it is repeated throughout the season rather than applied once and for all.

🦠 The seeding rhythm

At start-up

Pour in the dose every day for 5 days, to establish the population.

For maintenance

Add the same dose 3 to 4 times a month, throughout the season.

From 10 °C

Below that, bacterial activity is too low for a dose to be of any use.

🧭 pH and hardness first

One instruction goes with the dosing, and it comes before the first scoop: you must check the pH and hardness of your water and correct them if necessary before seeding. A bacterial population added to water whose parameters keep swinging will not establish itself, and you would be left with the impression that the product does nothing. A pH drop test and a carbonate hardness test are enough for this check.

What goes with a seasonal sowing

Pick up a pH and hardness test at the same time as the powder, since the dosing instructions begin with them. And if your base is already heavily silted up, a pass with a sludge vacuum first removes the matter that bacteria would take seasons to digest. The exact role of these micro-organisms is explained in the article on the nitrogen cycle.

What cancels out a seeding

Three situations destroy a population you have just established. First, a medicinal treatment or an algae remover applied in the following days, since it does not tell useful bacteria from the others. Second, a complete cleaning of the filter with tap water, as chlorine destroys the very colony you are trying to strengthen. Finally, water whose pH stays outside its range for a long period prevents the population from establishing itself. So leave at least 4 to 5 days between seeding and these interventions, in either direction.

The result of seeding is not seen in the same way as that of a treatment, and this is what puzzles people on a first purchase. A bacterial powder does not clear the water overnight; it speeds up the digestion of organic matter, which over a few weeks means a bottom layer that thickens more slowly, water that stays clear for longer after rain, and filaments that come back more slowly after you have removed them. So judge over a season rather than a week, and compare from one year to the next at the same date rather than from one month to the next.

🌡️ The season of use

The 10 °C threshold marks the start and end of the useful period, which generally means a season running from April to October in a temperate climate. Begin the starter series as soon as the water passes this threshold in spring, without waiting for algae to appear, since a population established early stays active throughout the build-up of the season. Stop in autumn when the water drops back below the threshold, and do not try to seed a cold pond, as the spores will remain dormant and the product will be wasted.

📦 Choosing the pack size

The pack sizes are given as the volume of pond treated over a full season, not as a number of doses. So work out your real volume before ordering, length by width by average depth, in metres, then multiply by 1,000 to get litres. Then choose the size that covers the whole season, because the powder keeps for 12 months and a size that is too small leaves you short in mid-summer, just when applications are most frequent. A shaded, lightly stocked pond can, however, manage with the maintenance schedule alone, without the starter series, which reduces annual consumption.

Technical specifications

The essentials

Dosage: 25 g for 5,000 LThat is 2 scoops of 12.5 grams each.
Composition: Spore-forming bacteria, minerals, trace elements

The rhythm

At start-up: The dose 5 days in a row
For maintenance: 3 to 4 times a month

Conditions and storage

Water temperature: Above 10 °C
Storage: 12 months in dry storageBetween 10 and 25 °C, away from moisture.

To budget for separately

pH and hardness test: Check this before sowing
Filter media: Filter media to colonise inside the filter

In the box

1 pack of concentrated powder with its dosing system, calibrated for a volume of 3,000 to 40,000 litres depending on the pack size chosen

Dosage, start-up and maintenance schedules, temperature threshold, pH and hardness check instructions, composition and shelf life recorded on 19/09/2026 from the manufacturer Aquatic Science product description for BACTOGEN.

Manufacturer and product safety

Manufacturer: AQUATIC SCIENCE SA
Postal address: Rue des Biolleux 8, 4800 Verviers, Belgique
Contact: info@aquatic-science.com
Website: aquatic-science.com

Information provided under Regulation (EU) 2023/988 on general product safety.

Powder, beads or liquid: three ways of adding bacteria

The same biological work, three rhythms and three different routines at the water's edge.

Three forms, three rhythms Established sludge means going over it often. A balance to maintain means doing almost nothing. A filter that is restarting needs a boost straight away.

	Shape	Dose stated per 1,000 litres	Water changes per month for maintenance (times)	Shelf life (month)	Volume covered by the largest size (m³)	Price
Recommended Concentrated bacteria powder for ponds, BactogenYour choice	Powder	5 g	3 times	12 month	40 m³	¥2,600
Bacteria pearls for pond filters KidoYour choice	Pellets	25 beads	1 times	24 month	30 m³	¥1,800
Kido Filter Boost bacterial activator forYour choice	Liquid	30 ml	2 times	24 month	20 m³	¥1,800

Concentrated bacteria powder for ponds, BactogenRecommended

What it is

ShapePowder

Dose stated per 1,000 litres5 g

The rhythm and the reserve

Water changes per month for maintenance (times)3 times

Shelf life (month)12 month

Volume covered by the largest size (m³)40 m³

In the shop

Bacteria pearls for pond filters Kido

What it is

ShapePellets

Dose stated per 1,000 litres25 beads

The rhythm and the reserve

Water changes per month for maintenance (times)1 times

Shelf life (month)24 month

Volume covered by the largest size (m³)30 m³

In the shop

Kido Filter Boost bacterial activator for

What it is

ShapeLiquid

Dose stated per 1,000 litres30 ml

The rhythm and the reserve

Water changes per month for maintenance (times)2 times

Shelf life (month)24 month

Volume covered by the largest size (m³)20 m³

In the shop

Forms, doses, maintenance schedules, storage lives and volumes covered taken on 19/09/2026 from the descriptions by the manufacturer Aquatic Science for BACTOGEN, KIDO Pond Pearl and KIDO Filter Boost.

Estimate your
delivery time

This powder goes out as a small parcel. The exact amount is calculated at checkout according to the total weight of your order and your destination.

Frequently asked questions

6 questions

6 key questions

How many scoops for my water volume?

Why check the pH and hardness beforehand?

5 days in a row at the start, then what?

At what temperature should it be used?

Why a powder rather than a liquid?

Can it be used just after an anti-algae treatment?

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Concentrated bacteria powder for ponds, Bactogen

The summary