- Joined
- Jul 20, 2014
- Messages
- 162
- Reaction score
- 46
heaters, pumps, etc are aquarium ready and not DIY. Putting a homemade circuit near water carrying 120 volts just seems like a risk that doesn't need to be taken if you can do with DC. I'm not saying its always dangerous, but something bad could happen.5 volts dc is usually a controll voltage. 40 volts dc is almost in heard of. 12 volts ac/dc and 24 volts dc is most common.