115-gallon acrylic tank

[game24_7]

I just got a 115-gallon acrylic tank. My plans are to start a mini reef tank. I have a couple questions. First when I filled the tank with water there is a slight bow in the center front and back of the tank, is this normal? My second question is I am looking into a euro reef skimmer but I’m not sure if I should get a RS 135 or RS 180, or is there another skimmer out there that is just as good as an euro reef skimmer that someone can recommend. Thanks Game24_7

[serpent]

is the tank new??? the bow i think your talking about is how the tank is made i have a 50G bow tank and same thing you can see it bow out it's not straight like most tank's i have a pic on here have a look and see if it's the same and for your skimmer it's like i allways say the more money you spend the better it is lol rs 135 will do the job