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INS350 Protein Skimmer
Protein Skimmer Model INS350
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INS350 Protein Skimmer
In Sump protein skimmer.

SRP: $899.95

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3-4 Week Lead TIme For Production
Product Code: INS350

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Description Technical Specs Extended Information

How we rate our skimmers.

Euro-Reef was THE FIRST* manufacturer to publish realistic ratings for our protein skimmers and at Reef Dynamics we follow in that tradition and conviction. We offer both "Capacity" and "Ideal"" ratings for all of our products so that you can properly compare them against the other products.

CAPACITY: The INS350 is rated to filter up to 1000 gallons of total system water volume when compared with other like sized products on the market.

IDEAL: The INS350 is ideal for "Mixed Reef" aquarium systems with a total capacity of +/- 350 gallons with a medium/average bio-load. A "Mixed Reef" system  is typically comprised of a mixture of soft corals, hard corals and a small fish population along with a few small crustaceans etc.  These systems typically put out less DOC's that the heavier stocked "Fish Only" Systems and have less restrictive requirements on water quality than "SPS" systems

IDEAL: The INS350 is ideal for "Fish Only" aquarium systems with a total capacity of +/- 300 gallons, especially those that do not use any live rock or sand, typically have a much higher bio-load when compared to the same sized Reef Aquarium and therefore require a far more powerful protein skimmer. The reason for this is that fish with a similar physical "biomass" to a given coral or colony of corals release substantially more waste that the coral, and this puts a greater amount of DOC's - specifically urine and fecal matter- into the water column.

IDEAL: The INS350 is ideal for  "SPS" aquarium systems with a total capacity of +/- 300 gallons with a heavy bio-load. "SPS" systems (aquaria with a focus on Small Polyped Stony corals) benefit from a high rate of organic extraction as it promotes and enhances coloration in corals by limiting the nutrients available to the symbiotic algae (Zooxanthellae) living within there tissue. In addition, a high rate of organic and particulate extraction increases the clarity of the water which in turn enhances the penetration of UV rays that stimulate the development of the corals colorful UV protective materials. Increased water clarity also optimizes the efficiency of the Zooxanthellae a thus decreases the number of the protozoa required to provide the coral with the food (glucose) it takes up in exchange for the CO2 produced by the coral through normal biological processes.

How to choose the right skimmer for your aquarium.

Choosing the right skimmer for your aquarium is all about understanding "Bio-Load". When a skimmer can handle the bio-load of the system, it will actually “idle” when the level of Dissolved Organic Compounds ( DOC’s) drops low enough to limit fractionation. i.e., there aren’t enough DOC’s to form a stable head of Foamate. When a skimmer cannot handle the bio-load, it will continuously be creating foamate and skimmate and never “idle”. This is a clear indication that the skimmer is undersized for the system and should be upgraded or modified to handle the existing bio-load. Most skimmer manufactures base their system rating or capacity on one simple premise: Economy While this rating system makes it look like you are getting more bang for your buck, in most cases it will do little to actually achieve the purpose of a protein skimmer! To get the most out of a skimmer and optimize your investment dollars, you must purchase a well engineered, properly rated protein skimmer. At Reef Dynamics, that's exactly what we do.

What is a Protein Skimmer and what does it do?

“Protein Skimming” or “Foam Fractionation” is a process of removing Dissolved Organic Compounds (DOC’s) from seawater by way of ionic attraction and adhesion. DOC’s are ionically attracted to the surface of the tiny bubbles created by the skimmer pump or airstone.

As the bubbles rise in the skimmers “Reaction Chamber”, their surface becomes coated with these DOC’s and when they reach the top of the skimmer, they condense in a frothy head called “Foamate”, much like the billows of foam you might find on the seashore after a storm. The foamate is pushed over the “Neck” of the skimmer where is falls down into the "Cup" and liquefies (like beer when it over-foams in a glass). This concentrated liquid is called “Skimmate” and is a collection of DOC’s, algae, miscellaneous floating particles, and water.

The removal of this DOC’s is critical in providing optimal water quality in closed marine aquarium systems. If the skimmer is correctly sized for the system, it will be able to remove most if not all of the DOC’s before they become oxidized by nitrifying bacteria. Since the job of these bacteria is to convert DOC's into Ammonia, Nitrite, and Nitrate, subverting this process is ideal since the goal is to limit the accumulation of Nitrates and other toxins in the system.

Learn more HERE.

* (Circa 1996)

  • Ideally suited for "Mixed Reef" aquarium systems of 350 gallons with a medium/average bio-load
  • Ideally suited for "Fish Only" or "SPS" aquarium systems of 300 gallons with a heavy bio-load
  • Pin-Wheel Pump Included
  • Energy Efficient
  • Quiet Operation
  • Limited Lifetime Warranty

Average Customer Review: 5 of 5 | Total Reviews: 4 Write a review.

  0 of 0 people found the following review helpful:
INS350 Protein Skimmer May 11, 2015
Reviewer: DAVID RIVERA from BRIDGEPORT, CT United States  

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  0 of 0 people found the following review helpful:
Amazing skimmer that does what they say April 15, 2013
Reviewer: Chris M. from Central California  
I purchased this ins180 skimmer for my 120 gallon sps tank. I have 15 fish of all sizes and heavily feed. My nitrates are 0 for the first time in years. I dose with vinegar and am amazed at how clean my water is. When I first got the skimmer it pulled gunk out to where I was cleaning the cup every day.  As my nitrates dropped,  so did the rate of cleaning the cup.  Now I only have to clean it once a week.  Corals have great extension and growth, and my Rose anemones are dangerously huge now.  Only drawback now is everything is growing so fast I might need a bigger tank soon.  This, along with AI LED'S are the best purchase I've ever made.

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  0 of 0 people found the following review helpful:
Quality skimmer March 15, 2013
Reviewer: Keith E. McBride from Raytown, MO United States  
The skimmer is well built, and LARGE even for my 42" sump. After two weeks the skimmer is solid, set it to the proper depth and adjust the foam about 2.5 inches up the neck, the bubbles get vertical form the start of the transition up,then forget it. This skimmer is on a 125 gal display and a 40 gallon sump. When you feed at night the skimmer bubbles never change, because it's taking out organics not the plankton and the corals have there tentacles out all day and night.

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  1 of 1 people found the following review helpful:
amazing August 13, 2012
Reviewer: Josh from Mesa, AZ  
I love this skimmer. It's hand made in the USA, is completely solid, and foams like a champ. In fact I didn't think it would perform as well as it did!  I tested it using a week's worth of skimate from my 200 gallon reef.  It went crazy and pulled it out in 2hrs.  I was so happy that I ordered their calcium reactor CR250E to replace my Geo. I almost ordered their Bio-Pellet reactor because it looks so cool, even though I don't like bio-pellets.  Hey Jeff...  how about some media reactors?

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