William writes: << I would like to ask questions and make a couple of comments. One is how many > gallons does that tank hold which is 36"x12"x18" by my calculations it is > 4 and 1/2 cu.ft. But how many gallons?> There are 231 cu. inches per gallon. 36x12x18 works out to close to 33 1/2 gallons. > Comment: How do the angels cope with the shallowness of the tank. I gather it is >only 12" high!? ><snip> I agree. I have bred young angels in ten gallon tanks that are only 10 inches high. But a large pair of veils will languish in tanks of those depths. Bob