How many wave makers?

[oliver]

How many wave makers should I add to my tank and what sizes?My tank is 90x50x60 +/- 220l and a 120l sump.

 

[Franna29]

IMO I would say 2 x (wp25 or rw8,mp10 or 40) and then you can move them around so there are no "dead" spots.

 

[puffer fish]

get 2x RW4 with a multi controller , for softies or 2x Rw8 for anything else