Banks, do you mean 'undergravel filter'? If so, no...those don't work well with sand because the sand is too compact to let much water flow through, and it falls through the cracks in the filter plate.
's are pretty much on the outs with SW
keepers...and even in FW
they aren't all that popular. Too much maintenance to have to clean the plate every 6-12 months, especially since they aren't a superiour type of filtration. Yes they work, but they are becoming somewhat obsolete due to the efficiency and reduced price of canisters and good HOB