Shark sand filter
My old cascade 100 had just died after I had it for 5 months. The woman at the pet store had told me that someone had came in to the store to return a Cascade 100 so she tried to convince me to buy the twice as expensive Shark sand filter:? . Now that my filter had died I decided to buy the Shark Filter which claimed that it do up to 60 G.P.H:o . This filter was a rip-off It immediately slowed down & never cleaned up any of the crap in the water:(
. So now I have bought a cascade 600 which claims up to 50 G.P.H. This Cascade does much better than the Shark. I would recommend this Filter for anyone who has a 50 gallon tank or smaller. 