A tub is kinda like a hide... it is small, and you can't see through it all that well. Many people will just use one hide (over the heat tape) to encourage their BP's to sit on the hot side. Eventually properly sized hide boxes for large Bp's don't fit well in tubs so I think that that plays a role as well.
gotcha thanks for the quick response.
Breeding Project
0.1 Clown
0.1 Proven Het Clown
1.0 Pastel Het Clown
1.0 Pinstripe Het Clown
0.2 Spider
0.1 StingerBee
1.1 Ghana Import