Pure Aquarium
Pure Aquarium Bomb

Fast acting live filter bacteria

Joining the award winning PURE Aquarium range is PURE Aquarium Bomb, the unique,
clear, live bacteria gel ball for use in aquariums.


PURE Aquarium Bomb is a much larger single treatment dose of live nitrifying bacteria
designed specifically at cycling new aquariums and making them ready for fish. It also
rapidly combats water quality emergencies in new and established freshwater aquariums,
when life threatening levels of ammonia and nitrite are detected.


Beneficial bacteria inside the filter can be lost through cleaning media under the tap,
replacing mature media with new, or the use of medications. Increased fish numbers,
uneaten food and dead, decaying fish can also lead to levels of ammonia and nitrite.

Pure Aquarium bomb

Please note: PURE AQUARIUM BOMB is not intended to clear green water.

An appropriate UVC is recommended to clear green water. Simply place PURE Aquarium Bomb directly into the main aquarium or better still into a space within a biological filter. One Bomb should be used per 200 litre aquarium, and will even work with a full stocking of fish.

Frequently Asked Questions

FAQs: provide answers to the most frequently asked questions. Start typing the product name + your questions in the search box. Or click here to access the FAQs databse.

PURE Aquarium FAQs
What is PURE Aquarium?
PURE Aquarium is a live bacteria and enzymes in a unique gel ball delivery method.
How does PURE Aquarium work?
Bacteria are suspended in the ball until placed into aquarium water. When fish go in, ammonia is produced, and the bacteria leave the ball to feed on the fish waste. The ball shrinks and the bacteria coat the substrate, decoration and filter media. Other bacteria are also contained in Pure which clear...
Where do I place PURE Aquarium balls?
Ideally, place Pure Aquarium inside the filter, in an area that will contain it. You may need to use a filter bag to keep it in one place. Areas of water flow are best, and if you have to, you can drop Pure Aquarium straight into an aquarium containing small fish. Large fish over 15cm may try to eat...
Can I overdose PURE Aquarium?
No, but it does contain aerobic (oxygen demanding,) bacteria, so strong surface agitation and/or aeration from an airpump and airstone is encouraged.
Is there any PURE Aquarium left over when I use it?
Yes, Pure Aquarium balls shrink down over time leaving a small 5mm bead. This can be left in the filter with other filter media, or removed and discarded.
I can’t see Pure Aquarium Bomb in the packaging. Are you sure there is something in there?
Yes, an interesting optical illusion happens when Pure Aquarium is placed in water – it turns invisible! Pour the contents into a fish catching net and you’ll see the ball, then tip into the tank..
What’s the difference between Pure Aquarium and Pure Aquarium Bomb?
Pure Aquarium Bomb is best for set-up of a new aquarium and filter, and Pure Aquarium is best for regular addition and long term maintenance. Adding Pure aquarium into long established aquariums should see the water getting clearer and appearing more polished, within 24 hours..
Can my fish eat it PURE Aquarium?
Yes it is possible for a large fish to eat Pure. It is only gel and friendly bacteria, but it should be discouraged. For any fish that is large enough to ingest Pure Aquarium, either in its hydrated or shrunken form, place it into the filter and contain it.
I’ve added Pure Aquarium to my system and nothing has happened?
As soon as Pure Aquarium is placed into an aquarium with fish, and dechlorinated water of the correct temperature, something will happen. Bacteria will leave the ball in their millions and seed the aquarium. You can’t see them but they are there and working, and Pure’s bacteria has been independently...
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