bayoupr, where are you from? This can help to determine what sort of units we need to be dealing with. Also, Kit, are you talking about the imperial gallon? If so, and bayoupr is talking in terms of U.S. gallons, there are only .8327 UK gallons in a US gallon, so your gallon might be a little larger than ours. If such is the case, I have taken the liberty to calculate and therefore say that you are thus referring to a 72 USG tank. I had never heard of two Texas Cichlids being able to be kept in something smaller than a 75 USG tank, so that is why I have made this series of deductions. If you have personal experience to the contrary, please let me know, but also please let me know if my calcs and assumptions are correct.