I like to leave, or would like to leave, a light on in the tank at night, is there a good maybe light bar, or something in the uv blue spectrum that would imitate moonlight, or at least not disrupt the fish too much?

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When you pay that cash or swipe that card you are making a bond with that animal that you will treat it with love and respect, and its needs will be met, first and foremost (unless you have kids...) I don't care if you have to eat ramen noodles or nothing at all to feed your cat dog fish rat whatever. That's the bond you made! Life is precious!

Blue LED lights are suppose to simulate moonlight, as long as you dont have a ton of them it shouldnt, lights that come with moonlight on them usually have 4 blue LED's i would start there and if you wanted to add more or take some away and only do 2 it would be a good starting point

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Tank
125g african cichlids making it work
75g rimless Reef in progress

Awesome! I had planned to get a light bar ( one of the airscape deals that light bubbles) and bury just the light toward the back of the tank.

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When you pay that cash or swipe that card you are making a bond with that animal that you will treat it with love and respect, and its needs will be met, first and foremost (unless you have kids...) I don't care if you have to eat ramen noodles or nothing at all to feed your cat dog fish rat whatever. That's the bond you made! Life is precious!

Yeah blue LEDs. Search the DIY section for :typeyourtexthere"'s DIYmoonlight thread : DIY Moonlight . It tells you how to make it yourself. I did it and it was super easy, I used 3 LEDs for my 29 gallon tank. Here is a really bad pic of my tank with the moonlights on. It looks really cool in person, you wont be dissappionted!

I see some people use cold cathodes also.

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29 gal planted,7 Harlequin Rasbora, 8 Neon Tetra,3 Bolivian Rams,3 Albino Cory,2 Emerald Green Cory
55 gal Lake Malawi
15 gal betta tank

I run a small led bar throuh the night never bothered my fish its not to bright but good enough so that i get viewing pleasure at night looks great at night but can never get it in a picture ive tryed loadz of times lol. A great investment for your tank in my mind. Also i read somewhere that fish never slee but shut part of there brain down dont quote me on that though

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another tank yes please. want a bigger tank always

Heres a link to some usefull info on another thread. Moon lighting= Amazing color

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29 gal planted,7 Harlequin Rasbora, 8 Neon Tetra,3 Bolivian Rams,3 Albino Cory,2 Emerald Green Cory
55 gal Lake Malawi
15 gal betta tank