Tunze Doc Skimmer 9004

Bought to replace a Hydor internal protein skimmer that had started to become unreliable after about 15years. Hydor unit only available in smaller size. Replacement needed to be compact and suitable for my 180 litre aquarium. It was easy to set up and was working efficiently within two days. Seems very effective, is silent and it’s easy to empty the collecting cup. A bit expensive but it seems to be worth every penny.

This is probably the best slimmer on the market. I have a fluval M40 marine tank. The skimmer is small but really powerful & very quiet. I would definitely recommend getting one of these skimmers. Easy to set up and install. Just plug in & play. It’s an amazing bit of kit.

Good little skimmer for the price. No fuss, plug-and-play operation. Lots of microbubbles for the first week or so. And the cup would fill up in about 10 seconds with the air valve fully open. Once it had bedded in, no more bubbles, and a decent, consistent skim of brown water. Now with the valve fully open, the cup can go 4 or 5 days without emptying. The only small downside. It’s not “silent” as I was led to believe. Far from noisy. But you’ll definitely know when it’s on.

Would have got five stars but the magnet isn't strong enough, nice and quiet compared to my boyu skimmer, think I should have bought the 9004, as no messing with fitting the surface skimmer. Otherwise pleased

Does a great job in my small marine tank

Excellent Skimmer used a Tunze 9002 for a few years, but this is producing far more waste. I am sure corals are looking better for it. Silent plug and play operation, I set it slightly higher in the water but open the air valve and its working great. Fitted on a RSM 130D on a stevie T rack. :-)

This is a horrid skimmer, awkward to use magnetic isn't strong enough so skimmer doesn't stay fixed and what's worse is no matter how you set it up it doesn't skim properly. I would strongly recommend avoiding this skimmer very poor quality for tunz I expected better

After a bit of fiddling about and leaving it to settle for a few days this skimmer is now producing good waste. It isn't too big and having moved away from a sump it is a great option in a tank. Would definitely recommend

Worth the money and the wait

Fünf Sterne für den besten Abschäumer, den ich seit 30 Jahen in meinen Aquarien eingesetzt habe. Kraftvoll und absolut zuverlässig. Tunze ist eben Tunze.

Reinigt gut aber die Lebensdauer ist unzureichend. Bei mir haben zwei Geräte hintereinander keine 4 Monate gehalten.