Thank you. Yes, that's what I meant. Definitely plumbing stuff and not electric. The stuff isn't actually touching the water at all, in fact, it's above the top of the tank. Air line over it is a good idea, it would protect the mangroves and keep water off the solder. I never tried a coat hanger because I knew I'd have a hard time manipulating it the way I wanted it.
Malaysian Trumpet Snails: JUST SAY NO!