flexwatt ?

should i use the 6 watt or 10 watt for my rack that has tubs that are 20x15x5.3?

I got 10 watts for my rack.

thats what i was thinking. use the 6 watt for a baby rack?

For baby racks I have the 3 inch 6 watt

I believe the six watt is the recommended rating, I have 4" 8 watt on my racks and those tubs (the dimensions you gave match the Vision V-35's) if they are the Vision tubs they sit real close to the bottom surface and heat really well so 6 watt should be fine.

A lot of folks go with back heat for the hatchling racks. . .

yes they are vision tubs. so 6 watt will be enough? what about the vision v-70?

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Originally Posted by armison89

yes they are vision tubs. so 6 watt will be enough? what about the vision v-70?

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If you have a good quality thermostat such as Herpstat or Helix that can do proportional heating then 6 watt will be fine. From what I found when I looked into buying a rack is that some of the PVC racks use the same 3" heat tape on those big tubs. That didn't seem to be enough in my opinion, but there is the animal plastics 41qt rack that has a dual side heat panel option. Most of the opinions I received when I asked around were that folks were generally using the 11" flexwatt for the adult racks with 41qt tubs. When I make my 41qt rack I'm going to use 11"