tank set up

[primewish]

help with tank set up

Hello everyone i am building a new frag tank. its a 40 critter tank. its water tight and i had it laying around and it was never used. so i am figuered i should put it to use. i built a stand for it. i am putting a 20 long for a sump. So here is my questions.
How big should i drill the hows for the inlet and outlet.

where should I place them.

and what equipment should i use. ie. return pump, plumbing size of the pvc pipe, power heads. light.

any and all help would be appriciated.

here is a pic sitting ontop of the stand i built.

 

[rynek23]

I would be super careful drilling that tank i have a critter cage i use for a sump but the glass is alot thinner than a normal 40 breeder.

 

[primewish]

thanxs for the heads up. i didnt think it would be thinner.