da coolest fishtank vid.

That is really freakin neat!
I have been trying to figure out how he gets the wwater to stay in teh top portion with the bubble maker running.
He states the top is sealed but if the top is sealed and the bubble make is running the air should displace the water and force it out of the upper portion right?

Maybe I am thinking about it too hard... LOL.
 
think of it as the outer tank walls are about 10" high and the tall part of the tank is submerged to about 1 to 2" off the bottom of the tank. so that means that the water wont spill out because thier is no air for the water to take over. i mean das wut i think it can be. it acualy works out qite well.
 
Yeah I know that would work simply for the cohesive properties of water. Teh thing that gets me is that he is able to use an airstone/bubbler in the taller tank.

Think about this for a second....if you are bubbling air into a closed container you would build pressure right?
So in this case the pressure would build enough to the point where it would expell the water out through the bottom of the taller tank, thus causing the lower main tank water level to rise.
Makes sense right? I mean you can't keep adding something to a confined space and expect there not to be an advance on available space. It is kinda like fitting 20 people into a mini cooper.... someone is going to fly out the window LOL.

The only way I see this working the way he describes the tank is unless ther is a valve at the top of the sealed to to vent the air pressure as it increases. This would not cause the water level to fall in the upper tank and flood the main tank.

Which ever way he has it running it is really neat... kinda cool to see the fish go up to the higher level. My original impression of the tank was that he had teh water being pumped up from the bottom of the tankand then overflowing or running over the sides of the taller tank thus creating a glass-like effect.

Again maybe I am thinking about it too hard LOL. But I find these kind of things neat.
 
<a href=showthread.php?s=&postid=9376549#post9376549 target=_blank>Originally posted</a> by gregbot9000
i agree with racermike27...seems impossible to have that airstone in there.

Unless at the top he has attached like one of those aqualifter pumps that pulls out air as well as water from the top of the column.
 
<a href=showthread.php?s=&postid=9376622#post9376622 target=_blank>Originally posted</a> by gricks
Unless at the top he has attached like one of those aqualifter pumps that pulls out air as well as water from the top of the column.
aqualifter pump would not be able to fight the gravitational pull of that water
 
<a href=showthread.php?s=&postid=9376675#post9376675 target=_blank>Originally posted</a> by GSMguy
aqualifter pump would not be able to fight the gravitational pull of that water

i ment somthing like that
 
<a href=showthread.php?s=&postid=9376763#post9376763 target=_blank>Originally posted</a> by gricks
i ment somthing like that
i am think the same thing as you i just am wondering what could have that kind of suction
 
The second video provides better shots but what I really want to see are shots of the very top of the aquarium.
In the last video you could see that the top although said to be covered has a pocket of air. I just don't see how this is possible LOL, and I did OK in physics LOL. The tank also seems to be pretty big as the second video gives a better idea of the size of the tank as compared to the door next to it.

Oh well I still don't get it....
 
i need to see the top to get it i cant imagine a way this is possible i guess the point of it is to defy physics
 
I asked on his comments page about it, but there's no guarantee we'll get an answer.

My best guess is that the airstone is on a closed loop with the air pocket in the top of the tank.
I would assume that fresh oxygen in the bubble stream isn't as important as the stream just creating water movement to cause some circulation from the lower section.
Much like a freshwater airstone-driven filterbox.

(Oh yeah, and also just to mess with our heads. lol)

Of course... you know what they say about assuming anything... ;)
 
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