I am a tub person myself for about a million reasons, but if you only have a couple animals it shouldn't make much of a difference for the actual breeding. It is afterward that you may have to take a couple more precautions. I would cover three sides of the tank. This will make the female more comfortable. I would pay very close attention to the humidity levels especially as the lay date approaches. Remember incubators are kept at or near 100% humidity for a reason. The eggs can get too dry really fast. I personally would be very vigilant and watching for those eggs if you are having any humidity problems at all.
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