LOL if you really think about it cars have not changed that much sense the model T we now just have more options.
I'm not going to argue with any one about this matter, it is one of the only proven facts about skimmers is that they can only pull 30% of the doc's out as not all organic compounds will latch onto the the bubbles and be tranfered out. Some of the earlier skimmers like the airstone ones had the right idea but didnt move enough water through them and i would suppose they were not efficient. Any one (manufacturer) that would be honest with you in private will tell you the same as one did tell me that they have not changed in the method just the shapes and of course colors, more efficient motors, but its not worth the cost IMO. As far as venturi/ injector air delivery I will check to make sure, but the Mazzeri 1" can deliver over 300 scfh with a good size pump, thats why your really large skimmers use injectors not big cone shaped ones with multiple pumps or neddle/meshed wheels. Didnt know there is anything out there besides these types.Skimmer have changed a lot in 15 years. I remember what my skimmer looked like and how they worked back then; that's like saying cars haven't changed since the Model T. My skimmer back then was a counter current skimmer with a wooden airstone and a huge air pump.
I have always thought the statement that skimmers only remove 30% of the DOCs misleading. Skimmers use air to bond with dissolved organics that have an affinity with oxygen. If you have an organic that does not have an affinity for oxygen; it won't get skimmed. The statement is rather meaningless to me as it lumps all organics together.
Skimmers pull out organics before they enter the nitrogen cycle. So pulling out the organics faster is what you want. That, and using less electricity and as most skimmers are in the sump, transferring less heat, is what an efficient skimmer is all about. Faster, cheaper, cooler.
You say your skimmer pulls more air than a needlewheel; how much does it pull do you know?
And most of the skimmers being discussed do not use needlewheels.
LOL if you really think about it cars have not changed that much sense the model T we now just have more options.
options that weren't there for the model T. Therefore they have changed. Even the motors are different. Same principle but work different.
Same as skimmers. The principle is the same but not the unit itself.
You might be able to get a 1,000 dol skimmer close to your budget buying used, check ebay I have found great deals on there and research the product first to see if its going to work, good luck
I am setting up a 300 gallon system (240gal tank 70gal fuge) and am wondering what is the best protein skimmer to use. My only problem is that my budget is around $350 not including shipping. What do you suggest?
Take this for what its worth: the only true way you can measure what a skimmer pulls out of your water is weigh the skimmate once it dries, that would be raw doc's and nothing else, and I dont see any manuf. out there advertizing that way, only lph or scfh. Most skimmers will change the way it skims by the surrounding air quality so there's too many variables, but for that problem connect your air tube high in the collection cup, the air is always the same in there. That info mentioned before was from a man in Atlanta that does research for a skimmer manuf. but he never would tell me which one.
edit: I have looked for that article but cannot find it. If you could post where you got your information from I would appreciate it. I am sure we read the same write up.
The problem with needle wheel skimmers and counter current (I won't even waste my time with airstones) is the bubbles. Those skimmers only smash the bubbles and bubble size is random.
Also the tests were not done on reef tanks or in a lab but tanks filled with water containing high amounts of doc's and then measured over a period of time the amount the skimmers were able to pull down. By a hobbyist.
Not a perfect review IMO.
I'm getting the Xtreme 250 1a and if that doesn't cover all my overkill needs, I don't know what will