Tunze Comline DOC Protein Skimmer 9001

Ordered this skimmer after struggling with the fluval mini protein skimmer. It broke in super quick and is giving me a beautiful brown sludge on the first day. setup is super easy there and tuning is intuitive. I cannot even hear it from across the room. not producing any micro bubbles either. It is a bit pricy but work it in my opinion, especially if you have a larger bio load or like to feed heavy.Edit: After having this skimmer for a month, The only complaint I have is the large amount of micro bubbles it makes. luckily its easy to solve. I just replaced the blue sponge with filter floss and they are gone!

Great little skimmer for a nano reef. I have it sitting in my cpr aquafuge 2. Fits nice and stays put. Has a lot of micro bubbles during break in(about a week or so) but have gone away now. Have had more than a few nano skimmers over the years now, but this one is almost silent and can produce pretty dark skimmate. Light tea colored is usually the best you can do with most small skimmers. Plus it's a Tunze! Hands down the best customer service you could ask for. If you ever have a problem or need a part, they'll have you fixed up in a day or two from there Texas location. If your thinking about buying one you won't be disappointed.

I bought this a few months back after some decent reviews. I wanted to upgrade from that weak BC skimmer that runs on a air pump.Pros: It works pretty good. Fairly silent. Produces a good amount of bubbles. Air stone free. Plug and play. Generated some good dark foam. The theory works...well.Cons: Never ever try to clean this sucker. Be extremely careful with the magnets as it is easy to break off the one that connects to the base (if you don't understand, you will). Directions are weak even though this should be self explanatory. If you don't have a auto top-off forget about it. You will literally have to move it down as your water level drops. If you have a auto top-off then you are good to go aside from the before mentioned problems.With that said be sure beforehand to play around with it out of the tank. Spend the time to get to know it inside and out. Had I done that I would have given it a few more stars. This thing is just a headache. +28 years in the hobby.Update - Ok after 4 months I have upped the rating one star. I am still irritated that there is a tiny piece of plastic holding that massive magnet but whatever. I glued it on and all is well. After a good break-in period this skimmer will produce some nasty foam, which is what we want. 4 Stars for doing what it is suppose to, 1 Star for price and ease of use. Again the theory is sound but the execution sucks. It needs tweaking but overall it is still in my BC which says a lot.

I purchased this for my Biocube 29 HQI. I had to modify the lip of the 3rd chamber with a dremel tool to allow it to slide in and out without too much hassle. I also changed out the air intake tube to be much, much longer than the previous one. After it broke in and I fiddled with the Tunze 9001, I finally got it working to produce some nice protein sludge. If you're looking for a SMALL protein skimmer that actually works, this is a great option. My chief complaint is that the lid to the collection cup goes on really tight---even with the slightest pressure placed on it, prompting a complete removal of the cup if I want to see how full it's getting. It's also prone to releasing microbubbles into my system if I touch anything about it. Otherwise, it's fairly effective and a good skimmer.

I bought this skimmer last August for my Topfin 25 gallon bowfront tank. I was skeptical about the airflow design of Tunze Nano 9001 compared to the powerhead turbo /venturi systems that I have used before. There were no recent reviews except for a brief review on YouTube. So I took the risk of ordering this unit since Tunze is a well known product in the industry.Assembly:Upon assembly of this unit I was debating which position of the pump should I use,since there are 3 ways you can mount it to the body. I finally end up using the conventional way as stated in the manual. It kept me thinking as to how it actually works because its has this air inlet hose plugged to an impeller that has no motor attached to it? It took me sometime to attach it with the magnet because the air inlet hose keep floating and pushes off the body. I found out the best way is to put the collector cup while mounting with the magnet to the tank.Operation:When I first turned on the skimmer I saw some kind of compressed fine air coming out of the transparent cover. When I adjusted the air inlet that's when I knew it was already running, seeing the skimmate rise off the cup. It is an effective and quiet nano skimmer with air pump technology, without the use of a cumbersome air-wood !I recommend this skimmer to any nano tank owners.

I had this in my tank for a month and it didn't produce any film, bubbles, skim at all. The impeller worked, bubbles were made, but nothing in the sort of protein skimming.I sent a request to return, but the seller wanted me to talk to the producer.DO NOT BUY, they will not make return easy if it isn't working, I am now stuck with a non-operating piece of $150 plastic.NOT impressed.

I bought this to replace a HOB skimmer, very compact and hidden. Took me a few minutes to figure out you have to remove the rubber ring on the magnet to slide it in place. Not the magnet on the skimmer, the one that holds it on the other side of the glass. I wold buy from this seller again. I've purchased from inTank before and his customer service is great. BTW I installed this on a waterbox cube 20, center chamber.