Tank Fill Level

[Paul_MTS]

Unfortuanately my tank with a weir that has be filled right up and there's about 2cm of space between water and covers, this is because whoever got it first had the weir built too tall

 

[keane]

Remember that the height of a tank has no affect on its stocking capabilites and a 4x2x2  (LxWxH) tank can still only hold as many fish as a 4x2x1 tank.

CFC..how can that be? If my calculations are correct, one foot less is 4 x 2 x1 less water which is 8 cubic feet of water or effectively 50% less water than the tank holds. How can that NOT affect stocking cababilities? Am I missing something here?? SH

The ammount of fish a tank can support is not governed by its volume but by the surface area, the more surface area a tank has the faster gas exchange can take place and the more oxygen can enter the tank.
A 30 gallon hexagonal tank that is 3 feet tall and a foot wide can only support the same number of fish as a 10g tank with the same surface area.

not to make an argument out of this but...surely the tank height has a great bearing on stocking capabilities.

Not to sound pedantic CFC but you could not, theroetically or realistically, stock the same amount of fish in a tank that has just 6 inches height of water as you could in a tank that has the same surface area but 16 inches height of water.

In addition to the water volume problem, swimming dwellings (top, middle, bottom) would be greatly reduced too, causing obvious problems.

I'm not picking an argument but i feel the tank height has a lot more bearing than is made out here.

regards

steve 8)

 

[NikkiY]

The manual comes with my canopy (Ligh-Glo) says 2cm from the top edge of the tank. That seems to work for me.

Nikki

 

[CFC]

Not to sound pedantic CFC but you could not, theroetically or realistically, stock the same amount of fish in a tank that has just 6 inches height of water as you could in a tank that has the same surface area but 16 inches height of water.

This is true but the major factor in how many fish a tank can hold is governed by the ammount of dissolved oxygen that is in the water, it doesnt matter if you have 1 or 100 gallons if the ammount of oxygen that can enter the water is restricted then it cannot support life.

Obviously a larger tank with the same surface area as a smaller tank can hold more fish as it has a greater volume to dilute toxins in before they reach dangerous levels but they can still only support the same ammount of fish, just the tank with the larger volume can support them for longer.

 

[keane]

Got ya, understood and agree!

BTW..nice to see you back posting.

There is far too much knowledge up in that bonce of yrs to be on strike!

steve 8)