powerhead set up

[Valentin]

need your opinions.
i have a 72" x 18" (deep) x 24" (tall) tank.
i am trying to set up my poserheads so i do not have any dead spots.

i am going to be using koralia powerheads.
#6 on the left and the right.
not sure what # i should get for the back.
is 3 better than 2 in the back as per the attached image?
is it worth it?

should the left back and right back be stronger then the center.
i am trying to get the most efficient/effective system going.

thanks for any input in advance.

 

[Valentin]

after looking at this, i really dont think i need the center back powerhead (C)

 

[THEDLO]

i would place one on the overflow facing down to get behind the rocks. my tank is set basically the same way tho save for i have a polario in where c is and a koralia 1...or 2 not sure...facing down behind the rocks.

 

[Valentin]

so basically, last saturday i bought a #6 for the tank.
i paid $160 + tax at my local fish store.

when i got home, i found out these things are 89.99 online.
needless to say, i returned my #6 yesterday back to the rip off store.

i bit the bullet and bought Two Koralia #6 and Two Koralia #4 today.
the #6 were 89.99 each and the #4 were $59.99 each.
free shipping and no tax FTMFW!!!!!
also picked up a digital thermometer.

ive decided, i am going to do a fowlr tank for now, until i learn the proper way to keep and mantain a tank. once i feel comfortable, i am going to move up to a coral tank.



as far as rock is concerned, i purchased another 45 lbs this weekend.

total rock as of now is 135lbs.
i want to have 1.35lbs per gallon of water. therefore all i need is another 34lbs then im good to go.