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Brightwell FaStart-M FastStart Nutrients

Brightwell FaStart-M FastStart Nutrients


Brightwell Aquatics FaStart-M is a balanced nutrient source for establishing and maintaining the biological filtration in the marine aquarium. Used together with MicroBacter7 it will establish and develop the biological filtration by providing necessary nutrients for beneficial bacteria cultures. Perfect for new aquarium tank setups.



Brightwell Aquatics FaStart-M Starter Nutrients  250ml / 500ml


  • Used in conjunction with MicrōBacter7, establishes and develops biological filtration by providing critical nutrients in specific forms and ratios.
    (Note: Not designed to be used with MicrōBacterStart XLM or MicrōBacterClean, use QuikCycl for those products, instead.)
  • Ethical and effective; encourages microbial proliferation without the use of poor nutrient sources, such as fish food (rich in refractory organic compounds) and so-called “starter fish”.
  • Indirectly benefits corals and other suspension-feeding invertebrates by encouraging reproduction of bacterioplankton (an important food source for those organisms).
  • Helps prevent bleaching in zooxanthellate corals.
  • Encourages polyp-expansion in corals, anemones, and their allies.
  • Formulated by a marine scientist.


  • Shake product well before each use.
  • Though FaStart-M may be used in any established marine aquarium, it is intended for use in systems dosed with MicroBacter7.
  • Greatest stability of biological filtration capacity will be achieved when using these two solutions in conjunction, as directed below.
  • Grossly overdosing FaStart-M will not significantly increase the effectiveness of the product, nor the rate at which it enacts changes in aquaria; in fact, it may have a deleterious effect on water quality if not used as directed.
  • Marine aquarium employing effective protein skimming will achieve maximum rate of nutrient export via extraction of bacterioplankton biomass, as opposed to systems that are not skimmed.
  • Do not attempt to maintain an aquarium containing zooxanthellate organisms completely free of detectable nitrate and phosphate; doing so is highly likely to result in loss of life of those organisms.
  • Water temperature, salinity, pH, and alkalinity must be within appropriate ranges prior to adding live microorganisms to aquarium.
  • Establishing biological filtration in new aquaria
  • Add 5 ml (1 capful on 250- and 500-ml bottles; 1/2-capful on 2L bottle) FaStart-M per 76 L of aquarium water; allow to circulate in system for at least one hour.
  • Using accurate test kits, determine concentrations of ammonia, nitrate, and phosphate; record results.
  • Begin adding MicroBacter7 as directed on that product’s label, dosing daily.
  • Re-test nutrient concentrations daily for the first two weeks of use.
  • When ammonia concentration is below detection level of test kit and nitrate concentration is below 3 ppm, then aquarium is cycled.
  • Dose with FaStart-M as necessary to maintain nitrate and phosphate within a range of 3 - 5 ppm and 0.01 - 0.03 ppm, respectively.
  • Daily dosing will encourage the most stable concentration of available nutrients in any aquarium system. Begin with 5 ml per 378.5 L of aquarium water, and adjust dosage as nutrient concentrations dictate.
  • When decreasing the aquarium bioload, increase normal dosage by 10%, and resume normal dosage once nutrient concentrations stabilize within desired ranges.

Technical Background
Establishing viable biological filtration in a new aquarium set up requires that the appropriate microorganisms are added in the presence of specific nutrients in the proper ratios.  Long-term maintenance of the biological filtration system requires that these nutrients remain available to the microorganisms. The use of “starter fish” and fish food in such systems to act as a source of nutrients is a poor practice: it places the fish at risk of being poisoned by toxic nutrient concentrations that are typical in immature systems; it creates potential future problems for the aquarist if the species employed has a natural aggressive nature, terrorizing new inhabitants, and proves difficult or impossible to remove without extracting most, or possibly all, of the decorations/infrastructure from the tank; it pollutes the system with large molecular weight particulate and dissolved organic material that can lead to proliferation of cyanobacteria and/or filamentous algae. The use of FaStart-M provides a “clean alternative solution” to all of these issues, and enables beneficial microorganisms to rapidly populate an aquarium system to establish biological filtration, then maintains the population through periods of changing bioload to ensure stable rates of nutrient uptake. When aquarium nutrient concentrations are maintained at constant values and within the appropriate respective ranges, inhabitants exhibit better overall health and coloration.

Does not require refrigeration. Maintained free of contaminants, remains viable indefinitely. Not impacted by temporary freezing.

Keep out of reach of children. Not for human consumption

Purified water, proprietary blend of USP- and ACS-grade phosphate, nitrogen, and organic carbon sources.



We want you to be fully happy with your new macroalgae addition. Therefore we offer you a hassle free Satisfaction Guarantee.  

If you are not 100%  happy with the macroalgae you have received on arrival we will refund you the full money back.    *1
We even will cover the return costs. The refund will be offered after we arrived and checked the returned marine algae.

*1 = Valid for UK Orders only, please see our Terms for EU orders HERE 


We offer for sale macroalgae from our mature macroalgae mother colonies in a premium quality & 100% healthy within the UK and EU.
All live algae species are sustainably grown in the UK.

All macroalgae will be well protected when posted to you to ensure that it will arrive in the best condition at yours.


We won't be beaten on the premium quality of our live algae cultures, and surely not on the price either!

Have you seen the same macroalgae somewhere else cheaper?

Please just send us a message HERE and we will check your request within 24 hours ( working days only ).

When we can match the other price we will send you a discounted offer which will be valid for the next 7 days after receiving our email.
This offer will be just valid for purchases using the same email address provided before.

The price match offer is only valid for identical, same size/amount and available macroalgae species.
As a proud UK based tax paying business, we don't price match any offers against auction sites or from private sellers.

The price match offer is just valid for UK deliveries. We reserve the right to refuse a price match request.

If you have any questions please don't hesitate to contact us.

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