do u need to divide your tank into top & bottom dwellers

[Bubble_B0y]

i was wondering,

is it possible to have a tank full of bottom dwellers (eg. cories)
or a tank full of top dwellers (eg. neons, danios, white clouds etc.. )

or are u supposed to have half top dwellers and half bottom dwellers ??


will the fish be more happy if there is half/half ?

 

[RogerMcAllen]

You don't need half and half, but it is good to have a mix so that there is not overcrowding in any one region of your tank.

 

[fishyrican]

Having the fish in different levels also makes your tank seem more alive and active.

 

[talloulou]

Much really depends on the type of fish you want as well. For example if you wanted a large school of corydoras that would be fine and they would love it. Plus they tend to swim all over so your tank would still have the "active" look. However if you liked plecos many of them are territorial and will go after their own kind when fully mature. To really give good advice it would be pertinent to know what types of fish you had in mind.

Otherwise I agree with the general answers above.