Most garden shops sell an assortment of flower pots. They also sell flowerpot saucers, which you could use to hold the sand. You could simply then place a flowerpot on top of the saucer with no worry of the sand seeping into the gravel--assuming the Apistos didn't feel the need to excavate and spit the sand outside. Zack ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. apisto-digest@listbox.com also available. Web archives at http://lists.thekrib.com/apisto