Hands on RS Nano Air pump Protein Skimmers

RS Nano-Air pump Protein Skimmers, RS-4002 and RS-4003 are the cheapest protein skimmers available in the market, which are manufactured by Risheng Electrical Products Co Ltd in China. The air pump is also required additionally for these skimmers to work.

Inside the box contains the skimmer body, collection cup, two rubber suction clip and one wooden air stone. This skimmer is compact and suitable for nano tanks, later wooden air stone would be required as a replacement as the wood in saltwater will get deteriorate.

RS-4002 is smaller having a size of 9 inches in length and diameter of the collection cup is 3 inches and RS-4003 is 11 inches in length and having a diameter of 4 inches.

RS Nano Protein Skimmers-1

For adjusting the airflow for skimming, we can use a controller air pump and we can also adjust the height of the inside the aquarium as they are hanging on the aquarium type of skimmer.

When we used it for the first time we dint get the desired result as our aquarium was new and so was the water. Later once fish was added and food was given the skimmer just kicked in. We tried the skimmer in different volume and it just kept skimming. We had to change the wooden air stone after some time.

RS Nano Protein Skimmers

For all nano tank lovers this RS Nano Protein Skimmers, you should consider as a small hanging skimmer. It can be used in a sump or can be placed in the display tank. It has a good built quality. In a nano aquarium along with the hang on the back filter or an external filter, this protein skimmers would be a perfect match. Not high of the budget like other counterparts this skimmer will make it easy on the pocket of a beginner.

Must Read: Summer Time To Cool Your Aquarium


Like always it's my day one in the hobby. Always been a hobbyist but never knew would dive so deep in the hobby. I too started with a freshwater aquarium. When I first started saltwater aquarium it just grew on me and I knew that had to do more in this hobby. I am a Post-Grad in Business Administration have worked with Coldstar Logistics, Amazon and Jindal's before jumping completely in the ocean. Other than aquarium hobby I have my interests in travel, digital games and consumer web technology.

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