Space Requirement For Butterfly...? Options

[joice]

may i know what is the space requirement for butterfly?
for example, X inch to X litre of water....

what is maximum height of water they can stay?

i have bought few baby/small butterfly intending to groom them. they are all abt 2 inch or not more (head to tail). their body abt 20 cents singapore size.

at least i need to know the basic space guide to prevent them stunted. thanks in advance

see anyone like me also getting butterfly fever? can bring up discussion on to groom butterfly. i found that small butterfly tail are quite weak. anyone willing to share their experienced in butterfly moor keeping?

[CyberET]

its not a fix ratio, besides the fish growing in length, it grows sideways as well.

at the moment, u can try 30-50litres per 2inch fish. it also varies with the water change frequency