I'm hoping to avoid the black-out plan. My customer, I'm sure, would be greatly annoyed with that. Water changes are annoying because they have about a teacup-sized water heater. I'm going to have to bring water from home to do a sizable water change. I'd love to add CO2, but there is no room to put the bottles- hey, it just dawned on me there may be room to put CO2 bottles now that the Fluval canisters are gone!. Thanks for all the helpful suggestions! Ray ------------------ To unsubscribe from this list, please send mail to majordomo@thekrib.com with "Unsubscribe aga-member" in the body of the message. Archives of this list can be found at http://lists.thekrib.com/aga-member/