Aquarium and pond equipment at the best prices!
For those passionate about aquariophily
Having trouble finalizing your order? Contact us 24 hours a day by email at information@zoanthus.fr.
Analysis
Analysis / Tests
Basin Analysis
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Balling Products
Seawater supplements
Basic elements
Fresh Water Supplements
CO2 system
Basin Supplements
Basic elements
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Water treatment
Bacterial Treatments
Adverse Treatments
Fish Care
Water treatment
Bacterial Treatments
Adverse Treatments
Fish Care
Water treatment
Bacterial Treatments
Fish Care
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Seawater Food
Fresh Water Food
Food Basin
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Sand
Substrate for reactor
Sea Salts
Sands / Quartz / Substrates
Remineralizing
Pond Substrate
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Seawater Equipment
Freshwater Equipment
Basin Equipment
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
PRODIBIO BioDigest 30 ampoules is a concentrated bacterial solution designed to help aquariums regain efficient biological filtration and visibly healthier water. Suitable for both freshwater and saltwater aquariums , this treatment utilizes several strains of live bacteria that work together to support the tank's natural cycle. It contributes to the digestion of organic waste, the reduction of undesirable compounds, and improved overall environmental stability. Highly useful for setting up a new aquarium, after an imbalance, or for regular maintenance, BioDigest helps limit nitrites, reduce nitrates and phosphates , and curb the proliferation of filamentous algae for a cleaner, more stable, and more pleasant aquarium to maintain.
BioDigest is based on a simple yet remarkably effective principle: introducing carefully selected live bacterial strains directly into the aquarium to enhance biological filtration. In an aquarium, everything depends on balance. Uneaten food, waste, decomposing organic matter, and nitrogen compounds accumulate rapidly if the biological system is not sufficiently active. This is precisely where BioDigest proves its worth.
Its concentrated formula contains nitrifying, denitrifying, and facultative bacteria that work synergistically. This synergistic action establishes or strengthens stable bacterial activity, capable of supporting the aquarium's daily needs. The product is suitable for both newly set up aquariums and established tanks experiencing instability, a nitrite spike, or simply a period when water quality needs improvement.
One of PRODIBIO BioDigest's major advantages is its ability to support the entire nitrogen waste transformation cycle . In practice, the product assists in the conversion of ammonia to nitrites, then nitrites to nitrates, before promoting the final transformation of nitrates into nitrogen. This gradual action is essential for maintaining a stable aquarium, especially in sensitive or heavily stocked tanks.
In addition, the presence of numerous strains of heterotrophic bacteria facilitates the digestion of organic waste from fish, leftover food, and suspended matter. As a result, the water becomes clearer, the tank becomes less dirty, and the organic load is easier to manage. This is a real advantage for aquarists looking to maintain clean water without disrupting the natural balance of the system.
When an aquarium starts to go off track, the first signs are often easy to recognize: less clear water, increased organic matter, rising nitrate and phosphate levels, and the appearance of unwanted algae. BioDigest helps to regain control of this type of situation. By supporting more efficient biological filtration, it helps reduce the organic load in the tank and limit the conditions favorable to the growth of filamentous algae.
This product doesn't act as an instant miracle cure, but as a smart biological booster that sustainably improves the natural functioning of the aquarium. This is what makes it particularly beneficial for regular maintenance. Used at the right frequency, it helps maintain more balanced water and a more comfortable environment for fish, invertebrates, and other tank inhabitants.

BioDigest easily finds its place in many situations. It is particularly appreciated when setting up a new aquarium , as it helps to establish biological filtration more quickly and effectively. It is also a relevant option after a nitrite spike, after a major cleaning, after significant filter maintenance, or whenever a tank shows signs of biological stress.
Regular use of this product is essential for maintaining optimal purification and helping the aquarium remain stable over time. This is especially beneficial in well-fed, heavily stocked tanks, or in setups where even minor fluctuations in water parameters can quickly become apparent. The product is also ideal for those looking to enhance their maintenance routine with a simple, clean, and easy-to-dose solution.
The logic behind using BioDigest is intentionally simple. The product is designed to work with high effectiveness for the two weeks following its addition. For this reason, it is recommended to use it every 15 days . This schedule helps maintain bacterial balance favorable to water purification without unnecessarily overloading the system.
If needed, particularly to accelerate tank purification, it's best to use the product more frequently rather than suddenly increasing the dosage . This approach better respects the aquarium's biological balance and allows for a more gradual process. The ampoule format is practical, clean, and quick to use, making the product very easy to integrate into a regular maintenance routine.
| How to use BioDigest | What volume? | Which range? | What dosage? |
|---|---|---|---|
| Use regularly to maintain optimal biological filtration | 120 to 1,000 liters | Standard | 1 ampoule every 15 days |
| For large aquariums, adjust the number of bulbs to the total volume. | More than 1,000 liters | Standard | 1 ampoule per 1,000 litres every 15 days |
| To accelerate purification, increase intake without overdosing. | Depending on the volume of the container | Standard | Do not increase the dose, increase the frequency if necessary. |
With its convenient format and proven formula, PRODIBIO BioDigest 30 ampoules is a reliable choice for aquarists who want to improve water quality without complicating their routine. It's ideal for those starting a new tank as well as those looking to stabilize an existing one. Its main benefit is gently supporting natural biological processes, which are the key to a truly balanced aquarium.
For Zoanthus, this type of solution naturally finds its place among the essential maintenance products, because it helps keep the aquarium cleaner, more stable, and more pleasant to observe over the weeks. For the aquarist, it's a product that's easy to understand, simple to use, and above all, consistent with serious tank maintenance.
This SALIFERT brand analysis kit allows you to accurately measure the calcium level of your seawater. Allows you to take 50 to 100 measurements.
Accurately tests the nitrate level of your seawater.
Allows you to take around 60 measurements.
Instructions in French
This analysis kit from the SALIFERT brand allows you to measure the Kh of your seawater with precision. Allows you to take 100 to 200 measurements.
This SALIFERT brand analysis kit allows you to accurately measure the magnesium level of your seawater. Allows you to take around 50 measurements.
Reduces nitrates and phosphates. Limits the appearance of harmful algae, allows the control of zooxanthellae for optimal growth and coloration of corals.
Second element of the Balling method, sodium hydrogen carbonate allows the maintenance of the carbon hardness (Kh) of seawater in the application of the Balling method.
3kg of powder allows the preparation of 36 liters of solution. That's 0€33 per litre!
High purity chemical products compliant with the European Pharmacopoeia prepared and packaged on site in our warehouse.
Products are now packaged in resealable pouches for less breakage during transport. They are also more ecological with 80% less plastic compared to our old packaging.
First element of the Balling method, calcium chloride allows the maintenance of the level of calcium ( Ca ) of the sea water in the application of the Balling method.
3kg of powder allows the preparation of 42 liters of solution. That's 0€47 per litre!
High purity chemical products compliant with the European Pharmacopoeia prepared and packaged on site in our warehouse.
Products are now packaged in resealable pouches for less breakage during transport. They are also more ecological with 80% less plastic compared to our old packaging.
Bio S from Aquaforest is a supplement containing bacteria, which create a favorable environment for the proliferation of strains of Nitrospirae and Nitrobacter .
Bio S 50 ml from Aquaforest is a supplement containing bacteria that create a favorable environment for the proliferation of strains of Nitrospirae and Nitrobacter .
Pro Bio S 50ml from Aquaforest is a supplement highly concentrated in probiotic bacteria . For the natural elimination of nitrates and phosphates.
Pro Bio S 10ml from Aquaforest is a supplement highly concentrated in probiotic bacteria. For the natural elimination of nitrates and phosphates.
Pro bio F 25g from Aquaforest is a culture medium for probiotic bacteria . This product improves water quality and helps clean the substrate.
An effective assistant for aquariums with bacterial film.
KORALLEN-ZUCHT cyano clean is a special strain of bacteria that competes with cyanobacteria .
A special strain of bacteria that competes with cyanobacteria.
What they think about it
(and they are right...)
Jean Charles B.
At the top (Translated review)
Alain M.
Super (Translated review)
Thierry r.
Super bacteria (Translated review)
Laurent m.
Perfect (Translated review)
Jocelyne g.
Very good product. (Translated review)
Jacques d.
Very good product. (Translated review)
Sébastien D.
The new cardboard packaging is very impractical. I regret having thrown away my last empty plastic box. (Translated review)
MICHEL V.
COMPLIANT (Translated review)
Michel l.
good product (Translated review)
Cedric J.
Package received promptly and well packaged (Translated review)