Number of powerheads to ues in my 30gal?

[johnl]

I feel I need to add more current to my tank(dead spots).
How many powerheads do I need? I was going to get maxi jets
But unsure on the size of the unit ant how many?
Thanks,
Jon

 

[johnl]

Do you know of the spots in the tank they should be placed I was thinking about 2 900s and a 600 for my tank?
Thanks,
Jon

 

[johnl]

Thanks again. Can you tell me how many inches form top of the tank and are the dead center or slightly to left or right and is the stream straight out or angled.
Thanks
Jon