04-09-2010, 04:15 PM
| || | DIY filter
Hey everyone, I posted this in the betta part of the forum but got little responce so I thought I'd try here also.
Heres the background info: i've got a 2-2.5 gal tank housing a betta. Currently I am faithful in doing roughly 50% pwc twice a week. However there always little particles that the gravel vac didnt get so I'm thinking about filters. I don't want a HOB if i can help it, I want to keep the lid on as far as I can. So the pretty much leaves a DIY sponge type filter. BUT another requirement is that it can't have a strong output or surface agitation. Thats where some hopeful engineering comes into play with the plans listed below.
hehehe how about this brain storm... alright so what I'm thinking is cut some sort of foam or sponge into a triangle(so it'll fit in the cornor, and to help it kinda blend in I'll use a color that matches my gravel), place a sort of lift tube in it about mid way to 3/4 down(possibly 3/4" diameter clear tubing so that its not too noticeable) . Above the sponge drill holes into the tube to let the water passing through the sponge escape. To cause the water to flow through the assembly use an air pump and stone incerted into the tube, the bubbles going up through the tube cause the water to rise and pass through the holes and be replaced/displaced by water elsewhere in the tank. OK so that all sounds normal to me..but thats gonna cause surface agitation right? Well what if I carried that lift tube all the way above the surface of the water? The bubbles will break the surface within the tube and not cause a lot of water movement at the surface ...right? Is this what everybody does? ha did I miss something here?
gemme your opinions and feedback!