UltraBio mix of highly active bacteria

This bacteria mix will prevent a monoculture in the filter and promotes the rapid processing of nutrients in the filter.

Article number
Fauna Marin GmbH
100 milliliter

€19,95 17,95 (Base price: €17,95 / 100 milliliter)

incl. 19 % VAT. excl. shipping

Delivery in 2 - 5 days ago * * Applies to deliveries to Germany.
Delivery times for other countries and information for the calculation of the delivery date see here.

UltraBio is a mix of highly active bacteria, specifically formulated for the Zeolight-System. This bacteria mix will prevent a monoculture in the filter and promotes the rapid processing of nutrients in the filter.

Standard dosing: 

Shake well before use.  

When starting to use UltraBio or after an exchange of the Zeolith filter medium add 1 drop per 100 liter/26gal every day for 2 weeks.
After this initial phase, add 1 drop per 100 Liter/26gal.  every three days, until the next exchange of the Zeolith filter medium.
Please add the UltraBio either directly into the tank or into the intake of the Zeolite Filter.  

It is advisable to turn off the skimmer for 2 to 3 hours after the addition of UltraBio.   

UltraBio is a mix of several nitrifying and denitrifying bacterial populations that were carefully selected for their ability to convert ammonia to nitrite, nitrite to nitrate and nitrate to nitrogen gas. Please add UltraBio at the beginning of using the Zeolith system and after an exchange of Zeolite.  

Our bacteria mix is highly concentrated. You can actually see the bacteria with the naked eye as aggregates drifting in the solution. Please shake the bottle slightly before each use.   

UltraBio contains the marine nitrifying and denitrifying bacterial strains „Nitrosomas sp. Nitrobacter sp. Nitrospira sp. Paracoccus sp. Pseudomonas sp. and is highly concentrated



In older tanks with high nutrient concentrations please reduce the phosphate concentration with Ultraphos down to levels around around 0,1 mg/l – 0,05 mg/l before using UltraBak. After the phosphate reduction, dose UltraBio as recommended above. 

Our bacteria mix is highly concentrated and you can actually see the bacteria as aggregates drifting in the solution. Through the high concentration of the bacterial cells in the solution, a contamination with foreign or a decay of the product can effectively be ruled out and makes preservation like storage in a Nitrogen atmosphere unnecessary. The solution has a shelf life of at least 9 months and does not require refridgeration. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

FAUNA MARIN BACTERIA SYSTEM for nutrient reduction in Reef tanks  

UltraBio can also be used for nutrient reduction without the use of Zeolites or other adsorbers. If you want to use UltraBio without Zeolith, you have to use UltraBio in combination with Ultra-BAK as a food source for the bacteria.  

Dosing :  
Shake well before use  

1 drop each of UltraBio and 3 drops of Ultra-BAK per day per 100 L/26gal, directly into the aquarium.
Keep this dose until Nitrate and Phosphate levels have dropped significantly.
After you have reached the desired water parameters, decrease the dose by 50%.  



The combination of UltraBio and UltraLife are a very effective treatment against cyanobacteria in reef tanks. Cyanobacteria form red films or carpets which can cover the entire decoration. They are good indicators for a misbalance between nutrients. An addition of UltraBio and Ultralife will reactivate the growth of a healthy and diverse bacterial population by balancing out the nutrients.  


Different products have to be mixed before dosing.
The daily dose per 100 L of tank volume is 2 drops of UltraBio, half a tablespoon of UltraLife and 2 drops of UltraBio.
Mix all the ingredients together and add them into the intake of a pump or any other place with high flow.

Maintain this treatment until the Cyanobacteria are clearly reduced. This may take several days to weeks, so please be patient. In most cases the treatment works in less than one week.

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