so, i am treating my betta for slight fin rot.
after some advice here, i bought a heater for my small 2 gallon tank.
after letting it sit and acclimate to my tank water temp. for about 15 min, i plugged it in.
it has been in there, with the red light on, for over an hour, while my poor betta waits in his tiny cup.
there has been NO change in the water temp in this time!!
the water is only at not quite 70 degrees right now!
what should i do?? my betta can't wait in his cup all day.