Source in us for substrate heating systems

[Oldfishmanbob]

Would like to know where I can purchase substrate heating cable system in the us?

 

[PheonixKingZ]

I don't recommend you go this route. I once tried an under-substrate heater, and it ended up malfunctioning, bending, and nearly killing my Betta at the time.

I would look into a good quality, conventional heater.