Now that we’ve taken an in-depth look at each product, it’s time to decide which one is right for your reef aquarium. You’ll need to choose based on a few simple factors, such as: Two of our favorite aspects of the 9001 are how easily it is to hide and the silent operation. The skimmer is so small it will easily fit in many AIO chambers along with AIO’s with hoods. You could run this in your bedroom or office without ever hearing it! While the 9001 works so well it does have a few quirks. First, the magnet that mounts to the skimmer itself uses four small plastic “clips”. I played around with it a little more now and did find out that the default position has least microbubbles. In this position I barely have any and with the two others they're allover the place... You do need to put the little sponge in, then.

The size of your reef aquarium – A larger aquarium needs a more powerful skimmer to process all of the water.

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And three: The microbubbles. I've read that many people have had issues with this. Some found a solution, of which I tried a few of, but I couldn't find a way to fix it yet. Perhaps it has to break in? Although it's not that I just put it in the tank: it has been in the water for a bit (but not working) so it does have that little slime film on it.

The skimmer is quieter now! The air tube isn't even much longer, just a few centimeters. I still put the silencer on at the end... I did notice that taking the silencer off also makes a difference now, whereas before it didn't seem to matter whether it was on or off. It doesn't seem to affect the performance. Both the Tunze 9001 and 9002 are great reef skimmers but, ultimately, the right choice depends on the size of your aquarium and your budget. If you have a nano-sized reef aquarium, we recommend the Tunze 9001. If you have a larger reef aquarium, we recommend the Tunze 9002. ConclusionBubbles produced by the Tunze Comline Doc Skimmer measure only 1-3mm allowing for easy distribution into the skimmer cup once loaded with protein. The unique performance of the Tunze Comline Doc Skimmer sets itself apart from other protein skimmers on the market, as its exclusive design ensures that the substances absorbed by the bubbles do not return to the water. Preventing the skimmer from over foaming, is thepatented anti-overfoaming system intermediate chamber, which simultaneously controls the performance of the device. Using the Tunze Flash Skimming Principle, the Comline DOC Skimmer pulls water through an efficient surface suction. The only downside to the 9002 is that its more powerful engine is slightly louder than the 9001. Nevertheless, it’s still quiet enough to go unnoticed throughout the day. Additionally, you’ll have to clean the cup every couple of days but, within just a week, you’ll notice as your tank becomes cleaner and cleaner. Which Should You Buy—The Tunze 9001 or the Tunze 9002? Amedium organic sensitivity is usually found in mixed aquariums inhabited with leather and stoney corals (LPS). Filters, sponges, etc. can also be found there. A DOC skimmer that is designed for 1,000 liters (264 USgal.) is likely to only skim 40% of organic substances with this light pollution. The type of reef aquarium you have – The density of your reef can also affect how powerful of a skimmer you need.

In this product review and buyer’s guide, we’ll provide an in-depth look at both the Tunze 9001 and 9002 tank skimmers. We’ll examine their specs and discuss which types of tanks they are best suited for. By the end of this guide, you should have a clearer understanding of which skimmer best suits your needs. Tunze 9001 Product Review The 9002 uses slightly more power, requiring 10 Watts of electricity to pull in 150 liters of air every hour. With a stronger motor, it creates a steadier stream of foam that flows into a 0.3-liter skimmer cup without creating micro-bubbles inside the tank. The foam simply passes into the skimmer cup, helping to keep your tank clean through the week. If your reef aquarium is prone to accumulating scum and organic matter, you’ve probably considered investing in a new Tunze reef skimmer. By circulating water through a chamber and introducing air into the tank, these skimmers create a foam that traps organic material and small particles. Yet, for it to work, you need the right product. So, should you buy the Tunze 9001 or the Tunze 9002? Thus, a DOC skimmer for 1,000 liters (264 USgal.) should be used for a tank with a maximum content of approx. 600 liters (158 USgal.). Two: There seem to be escaping bubbles. The water next to the skimmer is constantly looking like fizzy soda and it's actually the most hearable noise that's coming from the skimmer right now. There's also small particles of water jumping from that part of the tank. Basically just as if it's fizzy water. Is there a way to fix this? Or is this normal?

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The Tunze 9002 is slightly larger than the 9001, but it still works on the same “Flash Skimming” principle. As its engine whirs, it pulls water into a small chamber and adds air to create a steady stream of foam. This foam collects scum before it can settle into the tank and then overflows into a skimmer cup that you can empty to prevent algae and protein build-up. Thus, a DOC skimmer for 1,000 liters (264 USgal.) should be used for a tank with a maximum content of approx. 300 liters (79 USgal.). Thus, a DOC skimmer for 1,000 liters (264 USgal.) should be used for a tank with a maximum content of approx. 400 liters (106 USgal.). The Tunze 9001 and Tunze 9002 are both effective and efficient reef tank skimmers, but they are not rated for the same tank capacity. The 9002 features a larger and more powerful motor, making it better suited for larger aquariums. However, if you have a nano-tank, you should be fine with the smaller Tunze 9001. Consider your needs and buy based on your tank and reef requirements. Thanks to its relatively small and low-energy motor, the Tunze 9001 is incredibly quiet and can run all night without bothering a soul. The only downside to this model is that the skimmer cup can be difficult to remove, making it harder to clean the skimmer. Nevertheless, this is a wonderful option for nano-sized reef aquariums and will quietly work throughout the day and night. Tunze 9002 Product Review

Your budget – Both products are reasonably priced, but keep your budget in mind as you start shopping. As far as we’re concerned, the Tunze 9001 is a great option for nano-sized reef aquariums between 5.3 and 37 gallons. It’s small, quiet, and doesn’t require much energy to operate, making it perfect for tiny tanks. Additionally, it’s very affordable, making it a great option for budget-minded reefers. Nano aquariums have been growing in popularity and new equipment and technology are finally making it easier to have a slice of the ocean on your desk. During Interzoo, Tunze released multiple nano gadgets that turned heads and the Tunze 9001 DOC skimmer was one of them. With a small footprint, super efficient and extremely quiet, we knew we had to put one to the test.Set up was extremely painless. Simply mount the skimmer using provided magnets. Next place skimmer on the wavy line that is located on the front of skimmer. This is the required water level and we found it was spot on. Last, plug the little guy in! I did find out that the pump of this skimmer (mine at least) is basically silent and the noise comes from the air intake (and is especially loud if you listen closely to the opening of the air tube). As I read about people extending air tubes of skimmers to quiet them down, I tried replacing the air tube that comes with the skimmer with a slightly longer one. And even though I'm not sure why: it does actually seem to work! Though many people do seem to have it working properly... Or they just deal with the noise. Or the fact that it's not skimming properly. Hard coral aquariums (SPS) with a high population of fish require an extremely high skimming capacity. The skimmer has to ensure the proper degree of purity for hard corals in case of an excessive fish burdening, whereas an especially high performance is required if it's used as a "stand-alone solution". leather coral aquariums with long-polyp corals and anemones, for example, the load of dissolved organic matter may be higher, sometimes it may even be vital.