Hydra Aquatics BioPellet Reactor FR-30 or FR-45?

[Scuba Dan]

Need some help. Looking to order a Hydra Aquatics BioPellet Reactor. After shopping around at different on line retailers, I cant find what size tank each reactor would accommodate. I have a 120 gallon tank with a sump that holds 15-20 gallons of water. Which reactor should I go with, the FR-30 or the FR-45?
Thanks....

 

[shifty51008]

go with the FR-45, the FR-30 is only good for around 75 gal.

 

[Scuba Dan]

Thank you.....