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BioDigest is a natural mixture of live bacterial strains to help reduce and remove nitrates and phosphates through bacterial digestion. Utilizing a wide mixture of heterotrophic bacteria that work together to start the conversion process and then other strains of bacteria that will be able to finish the nitrogen cycle into elemental nitrogen. The concentrated mixture will effectively eliminate waste from your aquarium through a biological filtration process, leaving your aquarium with cleaner water that will greatly increase the health of your saltwater aquarium. 

  • Live Bacterial Strains
  • Nitrates and Phosphates effectively reduced
  • Prevents spreading of filamentous algae
  • Converts ammonia into nitrites, nitrites into nitrates, and nitrates into nitrogen
  • Suggest use of Bioptim for best results


How to use BioDigest:
It is suggested to use BioDigest when starting a new freshwater or saltwater tank to help kick-start the biological filtration process. From there on out, dosing 1 vial every 15 days will help keep the optimal amount of bacteria present in your aquarium. If you need to speed up the purification process do no increase the does, simply just dose more often.

For tanks between 30 and 264 gallons dose 1 vial every 15 days.

For tanks between 265 and 2640 gallons dose 1 vial every 15 days.


Note: Prodibio utilizes glass vials which excel greatly over plastic containers when it comes to oxidation and contamination. Please read the "How to use the product" instructions that are included with each kit to properly break the glass vials. All vials are filled with argon or nitrogen instead of oxygen. Lack of oxygen within the vial allows the bacteria to remain dormant until the liquid is put in the aquarium. The dissolved oxygen in the aquarium will awaken the dormant bacteria.

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Additive Type Biological
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Product Questions

Considering using bio digest on an established tank, 42 gal total water volume, ph -8.1, dkh -8.5, mg -1375, ca -420, ph4 -.1 and no3 - .7 (these numbers are stable for many months) I have 5 small fish and feed conservatively. Feed coral conservatively as well, once every 15 days. Would like to feed more but worried about the bioload and raising the nitrate and phosphate levels. Any suggests would be appreciated. Joe
Question by: J on Jan 2, 2019, 12:25 PM
Thank you for reaching out to Bulk Reef Supply! This is a great product for reducing and controlling nitrates as well as phosphates! It is recommended to dose 1 vial every 15 days and is very user friendly. I hope this was helpful. Please reach back out if you have any further questions!
Answer by: Ashley on Jan 8, 2019, 1:11 PM
I'm thinking of using this to startup a 5-gal reef tank. This kit includes ammo stop and biodigest. If this kit stops ammonia, what will feed and grow the bacteria during initial cycling? Can you explain how this kit works? thanks.
Question by: shayla on Dec 16, 2016, 1:11 PM
Great question! This product is bacteria, so assuming ammonia is already present in your aquarium, adding bacteria will convert that ammonia into nitrate/nitrite. :-)
Answer by: Randy on Dec 20, 2016, 2:21 PM
The tank size range for standard dosing 1 vial/15 days is pretty big (30-264 gal). I'm planning on using this on the lower end of that range, 34 gal reef. Would I still dose 1vial/15 days? Or should I scale the dose back to 1/2 or 1/4 vial. Is there a consequence of overdosing?
Question by: Bryce on Nov 7, 2016, 11:21 AM
Great question! The dosage is correct. You will need to dose one entire vial for your size of tank. :-)
Answer by: Randy on Nov 7, 2016, 2:21 PM