Backgrounds

[Mechaninano]

I've got a 45g that has a mirrored back and it does look pretty cool (the finish/coating whatever you want to call it is peeling a little though, but its not too noticeabl, especially since its in my brothers living room)

[Seamazter]

Black will always show sand particle in the water.
Blue will at least be calming if you choose a lighter color blue.
Black does add depth to the tank.

[Proteus]

I did mirror on my 90 gal and it was cool Since it double the amount of fish
I have blue on my 150 and I like It since it's bright. My 180 is black to add depth and make my colors pop

[Mechaninano]

Originally Posted by Titus99

I did mirror on my 90 gal and it was cool Since it double the amount of fish
I have blue on my 150 and I like It since it's bright. My 180 is black to add depth and make my colors pop

See, problem solved, you just need enough tanks to have one of each idea! Brilliant.

[MarkoD]

i have blue and i like it the most

[Parker]

I vote for black.

[Reefrookie79]

I'm thinking black cause I do like the depth aspect. I have blue in my 20 now. It is nice and bright. But I like the idea of the colors standing out with te black as well.
Thanks all for you opinions. Maybe I should jut get more tanks and do each and everyone of the suggestions haha. Don't know how the gf would feel about that tho lol

[MKLKT]

I keep mine clear, but that's also because there's a window behind so you can see the outdoors through it. I'd vote black though, although I'd like to see what mirrored backs look like in practice.

[abcha0s]

It doesn't matter. Just let the coraline cover the back glass.

If you must paint it, I vote for black. It does add depth, but equally important - it is the least distracting. Blue is nice and calming, but only because you notice it. Black fades to nothing.

- Brad