Fission Nano Protein Skimmer

Updated August 12, 2019
Author: Mike - FishLore Admin
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The Fission Nano Protein Skimmer is the smallest skimmer available coming in at just 6 inches high and 2 inches in diameter. It is a nano skimmer designed for nano aquariums. It comes with a power head pump that is rated at 84 GPH (Gallons Per Hour) that pushes the tank water into the cylinder to create a spiraling foam that is then collected in the small waste collection cup that sits on top of the unit. The collection cup has circular filter floss rings that fit into the bottom of the unit that allows water to flow back into the tank and any foam continues to rise into the collection cup. It comes with extra filter floss rings but you could easily make your own when you run out. It comes with some L-shaped tubes that will allow you to place the power head pump either to the side or below the skimmer.

Fission Nano Protein Skimmer


Okay, we set up our unit in a 10 gallon tank that has about 15 pounds of live rock and 2 small ocellaris clownfish. The bio load is not large but any skimmer should be able to pull a decent amount of gunk out of the water in this type of setup over a typical day or two.

Setting up the Fission Nano Protein Skimmer is fairly straight forward even though the directions could be better. We originally put the power head pump to the side of the unit and started to get some serious overflow into the collection cup. So, we tried to put the pump below the skimmer with only slightly better results. The directions show that the optimum water level should be at the mid-point of the filter floss ring area so that is where we placed ours. The first thing you'll notice is the large amount of tiny micro bubbles. Many skimmers have this issue and it should subside after a few weeks of use.

After a few days of running the Fission Nano Protein Skimmer we did see some light brown gunk in the collection cup and promptly emptied it. Things were going along smoothly until we forgot to turn it off when feeding the clownfish their favorite treat of live brine shrimp. The filter floss quickly clogged and the skimmer was overflowing back into the tank. We replaced the filter floss ring in the collection cup and were back in business.

After several weeks of constant use the amount of micro bubbles has diminished slightly but is still noticeable. The Fission Nano Protein Skimmer does produce some light brown gunk in the cup and we are emptying it on a daily basis. It is important to reiterate that this skimmer's collection cup needs to be emptied or checked on a daily basis otherwise the very proteins it removed will overflow back into the tank. That is unless you have some airline tubing attached to the overflow spout. You could then direct the airline tubing to a bucket or a drain.

It is really interesting that there is not more of these nano type protein skimmers mass produced yet. The box claims that this skimmer is for tanks up to 30 gallons but you should probably use a more powerful skimmer than this one for anything over 10 gallons. That is just our opinion. If you're running a 10 gallon or smaller nano tank you may be interested in this skimmer and it might do an ok job for you.



I rate this protein skimmer at 2 stars

Rating Information
Review Title: Fission Nano Protein Skimmer
Reviewed by: Mike FishLore
Summary: Review of the Fission Nano Protein Skimmer.
Description: The Fission Nano Protein Skimmer is the smallest skimmer available coming in at just 6 inches high and 2 inches in diameter. It is a nano skimmer designed for nano aquariums.
Rating: 2 out of 5 stars.

Fission Nano Protein Skimmer Comments

From: Patrick
This skimmer can be more hassle than it's worth! I got it because it was very inexpensive and ran it on my nano tank for about 3 weeks. I found it very difficult to get the thing adjusted correctly and was either not getting any foam or getting only water in the collection cup. I finally caved in and spent more money on the aquac remora and I have been very happy with the aquac.

From: Dawn
Don't waste your money on the Fission Nano Protein Skimmer. I've been through about 3 different "nano" skimmers and none of them have been worth it. Learn from those that have been there and done that. Get a good skimmer right from the start and one that is rated at a higher (gph) and maybe you won't have to buy a new one if you upgrade in the future. Some folks will warn you that you can over skim your tank. I've not found that to be the case if you perform regular small partial water changes periodically. Most of the needed elements should be getting replenished with the water changes.

From: Eric
Actually, I would say this product is worth it! I have it in my Oceanic BioCube in the filtration system where the bio balls are supposed to go. Bio balls aren't needed anyways. But it has pulled out alot of gunk and I hardly have to adjust it!
Thanks for the comment, first positive that I've heard regarding this skimmer and will post it. -Mike

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