Instant Ocean


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Why does BRS recommend this?

This is the perfect companion product for dry rock if you are looking to speed up the tank cycle. BRS has had very good success using it in our own tanks and recommend this product to anyone starting a new tank. It is a very effective source of live nitrifying bacteria for new tanks, quarantine tanks, water changes, or any time the biological load may increase in a saltwater system.


BIO-Spira is an essential water conditioner for setting up new marine aquariums. Contains patented and patent-pending live nitrifying bacteria that break down ammonia and nitrite, reducing fish loss in marine aquariums due to ammonia and nitrite toxicity. BIO-Spira accelerates the establishment of the bacteria necessary for successful biological filtration to prevent fish loss due to new tank syndrome. In just minutes after adding BIO-Spira to your saltwater aquarium, you can introduce your fish without exposure to dangerous levels of ammonia or nitrite. BIO-Spira can also be used after a water change, when adding new fish, or after medicating your saltwater aquarium. New shelf-stable formula requires no refrigeration.


Two Sizes Available

  • 100 mL size is good for 30 gallon tanks
  • 250 mL size is good for 75 gallon tanks


Note: This item ships from Minnesota and the product should not freeze or go above 90 degrees. Please check the weather before ordering, we are not responsible for the weather during transit. Recommended 2-day Air shipping during extreme hot or cold temperatures.

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SKU brs-instant-ocean-bio-spira
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Product Questions

Does the whole bottle have to be used at once? I want to keep this on hand for using when i set up my quarantine but i see on the bottle it says use entire contents at once?
Question by: Beth Thomas on Dec 29, 2017, 10:01 PM
Thanks for reaching out to us!

Sorry, but the entire bottle must be used. Have a great day.
Answer by: Josh Cuta on Jan 2, 2018, 3:52 PM
How soon after can I put corals in tank?
Question by: Thomas Guarino on Jun 8, 2017, 11:08 AM
While the bacterial supplement will establish beneficial bacteria in your system, this does not provide a complete or stable ecosystem conducive to good coral health. Typically we would recommend allowing for 2-3 months at minimum to allow the tank to mature prior to adding more sensitive livestock.

Happy reefing!
Answer by: Zack on Jun 13, 2017, 9:44 PM
I started a new tank with the Nuvo Fusion 20 starter kit. I used bio spira and it's been about 10 days. I have been ghost feeding and I also put a piece of shrimp in the tank for about 5 days in the beginning. Never really detected much ammonia and very little nitrite. In the past 5 days or so I have been getting more and more Nitrate. Does this mean that the tank is cycled? Should I do a water change now or wait for the Nitrate level to go down to zero? It's at 50 now based on the red sea test kit. Thanks.
Question by: Matthew on Jun 24, 2016, 12:01 PM
Hey there! It sounds like you are on the right path! Water changes will definitely help reduce those nitrates. :-)
Answer by: Randy on Jul 1, 2016, 9:38 AM
I am starting a new tank with BRS Fiji dry rock. There was a lot of dead/ decaying matter on the rock in received, so I gave the rock and acid bath. Now when using this product to aid in the cycle do you add it before there is any ammonia present or vice versa? The bacteria in this needs ammonia to feed and live on, right?
Question by: Thomas Guzman on May 11, 2016, 6:42 AM
Great question!
The Bio spira will help to keep up with the curing process by converting the waste through the nitrogen cycle. Feel free to let us know if you have any further questions!
Answer by: Connor on May 11, 2016, 6:35 PM
how much does this measure per gallon???
Question by: johnathan on May 4, 2016, 2:25 PM
Hey there,
This product will treat a 75 gallon tank with 250 mL. This means 3.3 mL per gallon.
Answer by: Connor on May 4, 2016, 2:27 PM
I am starting a quarantine tank. The plan is just to use RO/DI saltwater mix...not water from my DT. I was wondering do I just add the mixed saltwater and then add this stuff and it should start the cycle...then do periodic water changes. My quarantine is being used for freshly bought fish and then putting them into my DT. My DT is still cycling, hence why I'm not using that water, so when its done the fish will already be ready to drop into the DT tank if that makes sense.
Question by: Jeremy Bock on Apr 27, 2016, 11:07 PM
Correct! The Bio-spira will allow for instant addition of fish as it add the bacteria for you. Keeping up with testing and not adding too many fish immediately is a crucial step. Feel free to let us know if you have any further questions!
Answer by: Connor on Apr 28, 2016, 11:11 AM
Is this shipped with ice-packs or something to keep it cool, or is it simply a bottle in a box that will sit in a plane/delivery truck?
Question by: anizato on Apr 26, 2016, 7:42 PM
Great question!
These bottles are not shipped cooled rather just in factory packaging. The Dormant bacteria will survive most any trip.
Answer by: Connor on Apr 27, 2016, 4:05 PM
Do you need to do a major water change after cycling the tank with bio spira?
Question by: Billy Danz on Mar 18, 2016, 5:20 AM
Great question!
You should not need to perform a water change unless certain elements such as Nitrate are present in large amounts. Feel free to let us know if you have any further questions!
Answer by: Connor on Mar 18, 2016, 10:02 AM