It doesn't have to be expensive for a little
FO system if you do weekly water changes, read up and you should have no problems keeping a few Nemo clowns in a 10 or 15; see
http://www.bestfish.com/ssss.html.
You will basically need:
- sand or
cc
- a small power head ~150gph (for more flow around the rocks)
- salt mix
- tap water conditioner like Prime
- hydrometer (test salinity of water)
- sw test kit. (will need at least ammonia, nitrite &
ph)
You should buy some
lr since you don't need all that much or maybe
lr & a combination of dry base rock for around $1 lb, check all your
lfs for dry base rock or "coral rock". Use that instead of fake decorations, it will turn to
lr in a few months as the life from the
lr will spread to it. Read up and take your time, and ask lots of questions...