vermonter310
Aquarium Advice Activist
Quick question. In the past(and present) I have used "hang on" heaters where the adjustment knob stays out of the water. for this SW tank I purchased Submersible heaters, Visi-therm brand. Now this may seam a little silly but, they can be completely submersed right ? knob and all ? the cord will actually be in the water? I assumed the instructions would cover this but guess what, they don't mention at all anything about where or where not to use them. Go figure. Just want to be sure so I don't end up crispy.....