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Sheen on Water Surface!


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  1. #21

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    Bingo!!
    Quote Originally Posted by thepanfish View Post
    Those are just extra proteins at the surface, a combination of powerhead or surface skimmer agitating the surface and a good protein skimmer should do the trick.

  2. #22
    jimsflies - Reefkeeper
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    After discussing this earlier today with @rulost2001 , the thought is he has too much water in his tank which is preventing the water from cascading as it should through the overflow and weirs in the sump. Not sure if he had time today to take some water out to see if that improved the situation?

    Water levels in the last compartment that houses the pump should be lower than the other compartments...that is the spot that you should be watching and refilling the top off water to a set point. I believe in my biocube, I have the water set so it is only about 2/3 of the level of the display tank in the pump compartment.

  3. #23
    CR Member
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    Quote Originally Posted by jimsflies View Post
    After discussing this earlier today with @rulost2001 , the thought is he has too much water in his tank which is preventing the water from cascading as it should through the overflow and weirs in the sump. Not sure if he had time today to take some water out to see if that improved the situation?

    Water levels in the last compartment that houses the pump should be lower than the other compartments...that is the spot that you should be watching and refilling the top off water to a set point. I believe in my biocube, I have the water set so it is only about 2/3 of the level of the display tank in the pump compartment.
    thanks guys for all the help

  4. #24
    CR Member
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    thanks to my reefer friends the solution is a water flow problem....ive learned it needs to cascade into my overflow...and that can be achieved by having LESS water in my cube....the areas of the sumps need to be lower than the rest....sooooo dont cheat on your top offs by filling too much....just play the game lol

  5. #25
    rmalone - Reefkeeper CR Member
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    Lowering the water level will make it go away. Or you could put a thin piece of acrylic over the lower part of the overflow in effect making the slots on the overflow shorter this will force more water from the surface into the overflow. The way it is now your getting most of the flow from below the surface and the surface film just stays in the tank.

  6. #26
    larryandlaura - Reefkeeper
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    Glad to hear you figured it out!
    Hi my name is Larry and I'm a coral addict!

  7. #27
    jimsflies - Reefkeeper
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    Quote Originally Posted by rmalone View Post
    Lowering the water level will make it go away. Or you could put a thin piece of acrylic over the lower part of the overflow in effect making the slots on the overflow shorter this will force more water from the surface into the overflow. The way it is now your getting most of the flow from below the surface and the surface film just stays in the tank.
    When I first asked for a photo that is what I was hoping to see. The earlier models of nano cubes completely botched the overflow design. I think they corrected this issue compared to the original. However, they still may not be optimally designed. Definitely blocking the lower part of the overflow will help draw more water from the surface. Just be sure the water flowing over the overflow can keep up with the pump rate (pump doesn't run dry and cause the display level to become too high). A little experimentation will likely lead to a better design than the stock configuration.

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