"John Worfin" wrote in message
. net...
Has anyone attempted to remove and replace portions of the gravel of their
tank, without first tearing the tank down?

I have larger gravel (about 1/4") and would like to replace some of it
with
a layer of finer pebbles.

Is there a trick to doing this?



What sort of filtration (UGF/cannister/wetdry)do you use and number of
plants?
I did a 2/3 change with no probs at all with a fair amount of plants and
lighting but you'll need a real powerful external filter(Eheim 2213 in my
case to clear the crud). If you've got a UGF just do about 1/4 each week or
1/3 each 2 weeks. Just my 2c.