I love your tanks, Lambo!
I'll get photos of my 155g on Thursday when I add some fish that are currently in QT. For now, here's my super low-tech 75g eel tank. Doesn't even have lights, but I tell myself the eels like that

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Doesn't look like anyone's in there, yet... These two eels are still very small.
This is #1. He was added a bit under two months ago, and is already thicker around than the car key, and about 15" long.
This new girl was added a couple days ago, and she's just a touch larger than the first one was when I got him. They're getting along very well. This one has polka dots instead of stripes like the first one. Flash messed with the colors, though.