Mr 20 reactor

[kenand]

Got a deal on these reactors
in the pics. 1 reads mr 20 and I assume the other is the same,but no model. Anyway,are these ok to put in a 99 gallon aquarium sump?

 

[blaxsun]

Is the sump 99 gallons or the system 99 gallons? Should be fine with either, you'll just have to adjust the amount of media accordingly. I run about 500ml of carbon and 500ml of GFO on a 200-gallon system (just for comparison).

 

[kenand]

Not sure what size the sump is
90 gallon aquarium. I'm guessing about a 40 gallon sump. Is this still ok? I filled the tube up with the media in the pics. Take a look at them.