- Comline DOC Skimmer 9001 - Tunze
Using the Tunze Flash Skimming Principle, the Comline DOC Skimmer pulls water through an efficient surface suction.
- 5.3 to 37 US Gallon tank (Depending on tank load)
- Skimmer Cup volume: .2 Liters
- Air capacity: 26 GPH
- Magnet holder for up to 3/8" thick glass
- Quiet Operation
- Bubble free outgoing water
- Easy to remove collection cup
- Immersion depth: approx. 135mm to 155mm (5.3 to 6.1in.)
- Power consumption: 2.5W, 230V/50Hz (115V/60Hz)
- Dimensions: L110 x W63 x H215mm (L4.3 x W2.5 x H8.5 in.)
The Tunze Comline DOC 9001 skimmer utilizes Tunze's "Flash Skimming" principle. The skimmer is quiet and generates a very large volume of small bubbles for efficient skimmer operation. It operates stand-alone without needing any additional equipment (feed pumps, etc) and mounts to the tank via a convenient magnet holder strong enough for glass up to 3/8" thick.
The TUNZE® Foamer generates large volumes of fine air bubbles with a diameter between .0039 to .011 in. (0.1 to 0.3 mm). On the surface of the air bubbles, pollutants such as protein, cellulose, dead cells, etc. are adsorbed immediately. The water/air mixture expands and stabilizes in the skimmer cup reactor, the water returns to the aquarium, and the protein-loaded air bubbles spill over into the skimmer cup. The patented anti-overfoaming system intermediate chamber prevents the skimmer from over foaming and controls the skimmer performance, depending on the water level and organic load. This “flash skimming” principle, compared to large skimmers with long contact time, is obtained because the substances adsorbed by the air bubbles are not released again, thus they don‘t return to the aquarium water.
Great By Lucas on 4/15/2019Lucas would recommend this product to a friendI bought this to replace the loud skimmer that came on the red sea max nano - and im glad i did. Fits easily in the rear of the tank and is super easy to install / get working. Dont know what the bad reviews are for, probably user error.
Biocube 29 reef tank By Brettward on 3/20/2019Brettward would recommend this product to a friendFor my nano reef I needed a skimmer that would help me in gas exchange and nutrient export. While I know larger skimmers would be more effective at nutrient export, the skimmate increases and decreases in accordance with my small organic fluctuations I measure in the water. It appears to the best of my observation to be effective at helping manage the organics in my biocube 29. Most crucially, it easily fits in the AIO back chamber.
bad product By mikeland83 on 4/11/2018mikeland83 wouldn't recommend this product to a friendI have this skimmer on my 29 biocube and is the worse money I ever spend on my tank it doesn't work is been running for 2 month now no skim mate the amount of microbubbles is unbelievable makes my tank look cloudy. I hate this thing I took it out and now is in the garbage do your self a favor don't buy it.
Magnet Does Not Hold Skimmer In Place By Dave on 5/10/2017Dave wouldn't recommend this product to a friendI have this skimmer in a innovative marine 30l fits good in the center chamber. The skimmer produces very well when it is not laying in the bottom of the tank. It produced 0 micro-bubbles since day one. The issue I have with it is the magnet does not hold the skimmer. It would work one day and then it would slide down and over flow the collection cup. I had to order another magnet and remove the magnet from the side and mount both magnets on the back of the skimmer one towards the top and one towards the bottom. The skimmer now stays put where you need it.
Beast mode on 20G long By Cory K. on 3/15/2017Cory K. would recommend this product to a friendMy first impeller wheel skimmer.
After 2 weeks of break in time, I found running the air restriction is needed. It produces heaps of foam. Very reminiscent of lava flowing over a volcano.. and if you drive near a sewage plant. Well then you know that smell this skimmer produces. ... I run this is surface skim mode.
GREAT! By Darryl on 7/24/2016Darryl would recommend this product to a friendThis skimmer is Great for a small reef and fowler tank have 3 of them 1 on a 29 biocube reef,1 on a 20 long reef and a 30 fowler.
Works gratin all .
Keeping the water level is key to its greatness have the TUNZE Nano osmolator on all tanks and that makes it sweet! Micro bubbles go away after break in.
Good Alternative to Ghost Skimmers By Brandon on 6/29/2016Brandon would recommend this product to a friendI have an IM Nuvo 30L Reef. After reading numerous negative reviews on the Ghost Skimmers ( The ones specifically made for IM) Micro Bubbles are a huge issue with them. I decided to give this one a try. It is well made, though it does seem to "fall apart" when you're first installing it. But after it is in the back chamber it holds together quite well. It took about two weeks of breaking in and adjusting the air intake, but it works wonders now... I may have to upgrade when my bioload increases but for what it is, it works great.
Great for my 40 gallon By Ricksreef on 4/3/2016Ricksreef would recommend this product to a friendGot this for my 40 gallon IM Nuvo.It works great and starting skimming fron day one.
Bubbles! By Chad on 3/21/2016Chad wouldn't recommend this product to a friendI purchased this skimmer mainly due to it's size, the sleek look, and the Tunze name. Upon receipt, I wasn't impressed with the build quality -- everything is just barely held together with thin plastics and every time I go to empty the cup, it tries to fall apart. I'm running it in a little 10 gallon framed tank, so to get it to clear the lip, I had to use the mounting extension; however when doing so it sags badly and looks awful. I finally had to give up on the extension and mount it under the lip, meaning my water level in the tank is now constantly visible. It still sags even with the standard magnet mount, but less so. When trying to get it dialed in, I would have days where I would empty it in the morning, then all of a sudden it decides to go nuts and overflow by the time I made it home from work. I finally have it working where I can at least go a full day without too many worries. I've had it running for two and a half months now and it skims well, but the biggest problem is the bubbles! I kept waiting for it to break in and stop dumping a ton of micro-bubbles into the tank, but I'm beginning to suspect it's defective or something. I like that it actually skims and is a nice compact size, and that it included a surface skimming attachment, but the flimsy construction, temperamental adjustments, and unrelenting bubbles leave me hesitant to recommend this product.
Awesome Skimmer By Sean on 8/1/2015Sean would recommend this product to a friendI really like this skimmer now that it has broken in (about a month). After some adjustments and tinkering it produces a nice dark nasty skimmate! I have it in a chamber that has a constant water level and have slowly been dialing back the air to get great results. Not sure what others are doing wrong
Another awesome product from Tunze By Joseph on 5/4/2015Joseph would recommend this product to a friendThis skimmer works perfect. For its size it is crazy how much it will skim. I used it in a biocube 29 for 6-9 months as a normal skimmer, than inside of a 40 gallon breeder as a surface skimmer. Does just exactly as it should. Would still be using it, but sold my tank. When i reset up my biocube it is a must unless they develop an even better one.
Takes a while to break in and is very sensitive to water level By Waboss on 2/12/2015Waboss wouldn't recommend this product to a friendLike Dominik, I was tinkering with it daily to try and get good skimmate, but after about a month of running, it seems to have dialed in and is producing skimming pretty well now. It's a decent skimmer if you have patience.
Will it fit in the 2 chamber of a jbj nano cube 24? Looking for a protein skinner that will and do a good job. I'm not a fan of the air driven ones
We are not familiar with the JBJ back compartment. The full size is L4.3 x W2.5 x H8.5 in which you will need to have in the chamber.
If the collection cup were to overflow, would it overflow back into the tank or would there be a possibility that it would spill onto the floor?
Have a great day!
Does this skimmer fit in an IM Nuvo fusion 20?
Unfortunately the Tunze Comline will not fit in the Nuvo 20. The only alternative is the Desktop Ghost skimmer by Innovative Marine. Feel free to let us know if you have any further questions!