First of all, I own three snakes: two corn snakes and a ball python. I have them all on two levels of racks, the corns below and the ball above, so I have two seperate units of heat tape. Having two different species means I need two different hotspot temperatures. Does this mean I should buy two seperate thermostats? Are there thermostats that can control multiple different temperatures? I use an on/off thermostat at the moment (Zilla 1000 Watt). Thanks in advanced.