Remember Texas has these rules dealing with Trotlines
A non-metallic main fishing line with more than five hooks attached and with each end attached to a fixture.
Non-game fish, channel catfish, blue catfish and Flathead catfish may be taken by trotline.
Red drum, spotted seatrout and sharks caught on a trot line may not be retained or possessed.
General Construction and Design Restrictions
Trotlines may not be used with:
a mainline length exceeding 600 feet;
hooks spaced less than 3 horizontal feet apart; metallic stakes; or the main fishing line and attached hooks and stagings placed above the water's surface.
Trotlines in fresh water must be used with a valid gear tag. Properly marked buoys or floats qualify as valid gear tags. Gear tags must be attached within 3 feet of the first hook at each end of the trot line and are valid for 10 days after the date set out.