On Thu, 16 Mar 2006 17:56:42 -0500, Nikki wrote:

When I change their water daily I either change 100% or 50% depending,

You should only rarely do 100% water changes. By replacing all the water,
you will cause new tank syndrome. Of course, the medications you're
adding might already be killing the good microbes along with the bad.

You may want to add aquarium or sea salt to your tank unless it's planted.
The added salinity will definitely help against ich.

hth,
Laie Techie