Bacteria pearls for pond filters Kido Pond Pearl

Regular price $11.00
Regular price Sale price $11.00
Volume Price Price per L vs 500 ml
500 ml $11.00 $22.00—
1000 ml $19.00 $19.00−14 %

These slow-release bacteria beads go into the filter, in the mesh bag supplied. The dose is 25 beads per cubic metre, renewed once a month.

The 500 ml tub contains about 400 beads and suits a 15 m³ pond, while the 1,000 ml tub contains about 800 for 30 m³. The UV lamp can stay on.

Ref. KIDPP500E·Bacteria
Volume : 500 ml
Customer support 7 days a week by email
Delivery within 2 to 15 business days
100 % secure payment
Visa Mastercard American Express PayPalCartes Bancaires Apple Pay Shop Pay Bancontact EPS KlarnaMobilePaySatispay

The summary

  • What you receive: a tub of beads and the net bag that goes with it, to slip into your filter.
  • What they do: they slowly release bacteria into the filter's flow, throughout the month.
  • Dosage: 25 beads per cubic metre, renewed once a month. You dose by counting, no scales needed.
  • With your UV: the lamp can stay on, and no switching off is required during the treatment.
  • Beads, powder or liquid: three ways of supplying bacteria, for three ways of looking after a pond.
  • Shipping: small parcel, postage is calculated at checkout according to your destination.

Bacteria beads to place in the filter once a month, with no weighing

The Kido Pond Pearl bacteria pearls from Kido slowly release bacteria into the filter flow over a month, with a net supplied. The dosage is 25 pearls per cubic metre, renewed once a month, with no scales needed. The 500 ml pot (about 400 pearls) suits 15 m³, the 1,000 ml pot 30 m³.

These beads contain bacteria that are released gradually into the filter flow over a month. You place 25 per cubic metre of water in the mesh bag supplied, then put the bag in the filter chamber that the water passes through. Dosing is therefore done by counting, with no scales or measuring cup, and it only needs repeating once a month.

🔢 Counting instead of dosing

The calculation starts from the volume of your pond in cubic metres, that is the length, width and average depth multiplied together. A 6,000-litre pond is 6 cubic metres and therefore needs 150 beads per month. The 500 millilitre pot contains about 400 and suits a 15 cubic metre pond; the 1,000 millilitre pot contains about 800, for 30 cubic metres. Count the beads the first time, note the number, and reuse it at each renewal.

🧺 The bag in the filter

The net keeps the beads together where the water is flowing. The bacteria they release are carried towards the filter foams and media, where they attach, rather than being scattered throughout the pond. A net left on the bottom of the pond, away from the current, instead releases its bacteria on the spot throughout the month. The slow, spread-out release of the beads suits a pond whose water is already in good condition and that you want to maintain without a daily routine.

Where to place it

Place the net in the chamber where the water flows, in contact with the current, and not in a dead corner.

The UV lamp

It can stay switched on, no shutdown is required during the treatment.

Water renewal

It is done once a month, removing what is left from the previous application.

Restart a rinsed filter before fitting it

The beads maintain a population that is already established, whereas a new or thoroughly rinsed filter has almost none. In that case, start with the liquid bacterial activator, poured into the filter for 5 days in a row, then add the beads to see you through the following month without any further dosing. You thus move from a strong input at start-up to maintenance that is renewed once a month.

A sealed tub keeps for 24 months between 10 and 25 °C, which means you can buy the whole season's supply in one go and dip into it each month. If the bottom of your pond is already heavily loaded with sludge, concentrated powdered bacteria act faster, since they can be dosed several times a month. What happens to the ammonia and nitrites once these micro-organisms are established is explained in the article on the nitrogen cycle.

📅 One pot for the season

Choose the size according to the number of months you want to cover. For a 6 cubic metre pond, which needs 150 beads per application, the 500 ml pot covers 2 months and leaves about a hundred beads, whereas the 1,000 ml pot covers 5 months and leaves about fifty. On a 15 cubic metre pond, which needs 375 a month, the 1,000 ml pot still covers 2 months. For a full season on an average-sized pond, the large size therefore saves you from buying more in the middle of summer.

Technical specifications

The essentials

Dosage
25 beads per m³A 6,000-litre pond needs 150 beads.
Replacement
1 time a month

Capacity and range

Beads per pot
Approximately 400 or 800
Volume covered
15 or 30 m³

Use and storage

UV lamp
Can be left on
Storage
24 months, from 10 to 25 °C

To budget for separately

Filter media
A medium where the water really flows through
Water test
For tracking nitrite and nitrate

In the box

  • 1 tub of bacteria beads, 500 or 1,000 ml depending on the size chosen
  • 1 mesh bag for placing in the filter

Pearl dose, renewal, number of pearls and pond size per pot, UV lamp and storage taken from the manufacturer's description by Aquatic Science for KIDO Pond Pearl, on 19/09/2026 and again on 11/10/2026.

Manufacturer and product safety

Manufacturer
AQUATIC SCIENCE SA
Postal address
Rue des Biolleux 8, 4800 Verviers, Belgique

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.

Hold steady, or catch up Beads hold a balance for a month. A powder and a liquid rescue a situation that has already deteriorated.

ShapeDose stated per 1,000 litresWater changes per month for maintenance (times)Shelf life (month)Volume covered by the largest size (m³)Price
Concentrated bacteria powder for ponds, BactogenYour choicePowder5 g3 times12 month40 m³$16.00
Recommended
Bacteria pearls for pond filters KidoYour choice		Pellets25 beads1 times24 month30 m³$11.00
Kido Filter Boost bacterial activator forYour choiceLiquid30 ml2 times24 month20 m³$11.00
Concentrated bacteria powder for ponds, Bactogen
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 KidoRecommended
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 pot ships as a small parcel, along with the rest of your order. The shipping cost is calculated at checkout according to your destination and the total weight.

Frequently asked questions

6 questions

6 key questions

You may also like

Related articles

Koi carp in aquaponics
Fish

Koi carp in aquaponics

A heavy organic load, and filtration that must be supported all year round.

Read the article

Let us talk about your project

A question about this product or your setup? Our team will answer and advise you.

Email usContact form

Interest-free instalment payments

Offered depending on the cart amount, at checkout.

Delivery in 2 to 15 working days

Depending on the products and shipping sites. Estimate by destination in the estimator on this page.

After-sales service 7 days a week by email or chat

Our team answers all your questions.

Shop responsibly

Become part of the change.