Design

Can I just put the screen above the tank other than in the sump?

Certainly...

http://www.radio-media.com/fish/SumplessFeed.jpg

That's what the picture is. You have to have some way of catching the water. If you mean having the water/screen flow directly into the top of the display, your lights are going to light up the whole room.

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Originally Posted by SantaMonica

That's what the picture is. You have to have some way of catching the water. If you mean having the water/screen flow directly into the top of the display, your lights are going to light up the whole room.

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So that I can use the light of the tank to light the screen as well. :)

If you do that it's going to get tricky. Splashing, proper flow, proper light, ease of cleaning, safety. I have only seen one done properly:

http://www.radio-media.com/fish/UserGlock339onUR-4.jpg

You can look here for more pics:

viewtopic.php?f=3&t=26

Best best is to use a bucket or box.

Make your top box a surge tank and really get some benfit from all that water flow :)

Quote:

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Originally Posted by Aquagold

Make your top box a surge tank and really get some benfit from all that water flow :)

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In fact I have a top box filter. I want to direct the water from the filter to the algae screen. Do you think if it is effective?