SO HERE IS THE PROBLEM! WE ARE DEBATING BETWEEN A 125 GALLON AND 150 GALLON. THE 125 IS 72X18X22 FOR $611(TANK AND STAND) AND THE 150 IS 72X18X25 FOR $794(TANK AND STAND). WE WILL BE PUTTING OUR AMERICAN CICHLIDS FROM OUR WAY TOO SMALL 75GALLON IN THE NEW TANK. WE HAVE BEEN TOLD THAT THE SURFACE AREA IS MORE IMPORTANT THEN THE ACTUAL NUMBER OF GALLONS WHEN FIGURING OUT HOW MANY FISH THE TANK CAN HOLD. WOULD WE BE ABLE TO HOUSE MORE FISH WITH THE 5 EXTRA INCHES IN HEIGHT? OR WOULD THEY BOTH BE ABLE TO HOLD THE SAME AMOUNT OF AMERICAN CICHLIDS? ITS ALMOST $200 TO HAVE THE EXTRA 25GALLONS.... THIS SEEMS LIKE ALOT OF MONEY. AND THE ONLY REASON I'D STEP UP TO THE LARGER TANK IS IF WE COULD KEEP MORE FISH OR IT CUT BACK ON AGGRESSION. WE ARE LEANING MORE TOWARDS THE 125GALLON... ANYONE HAVE ANY INPUT ON OUR SITUATION?? 
