Thusly "Ozdude" Spake Unto All:

I am wondering if anyone else here is doing this cost-cutting
activity, or if anyone has any advice or comments that they would like
to share about this. Currently I am using several inexpensive plastic
storage containers,...snip

I know that many killi breeders around here use 30-liter (that's,
what, 8 US gallons?) stackable transparent containers from IKEA.
They're sold under the name FLAJ here, and cost £1.30.