Advice on water change

[marcusy]

How do your normally change water for shrimp tank. like 20% or 10%?
do heard from a forumer here that is best not to change water regularly?

my tank consist of tigher bee and low grade of CRS .

[bryant_16]

Every 2 weeks once for me...

[marle]

http://www.aquaticquotient.com/forum...ad.php?t=34422

might help.

[silane]

How do your normally change water for shrimp tank. like 20% or 10%?
do heard from a forumer here that is best not to change water regularly?

my tank consist of tigher bee and low grade of CRS .

Yeah, sometime water change will cause CRS to drop eggs, fries killed or even death. It is hard to determine to change or not.