Never waste your $$$ on Apex leak detection, make your own!

[mike31154]

So some of you folks are using probes made of copper in your reef systems without issue? Nails may not be harmful since they're steel, they'll simply corrode over time, but is copper not potentially harmful to your livestock, specifically coral? There might be a good reason the Apex probes are costly, they're probably titanium. In order to save a few bucks, you may be putting your valuable livestock at risk.

EDIT: Ok, never mind, my bad. I see these 'probes' are outside the tank & are only exposed when water overflows & hits the floor?