Brent for a 75g tank suggestions range from the Red Sea Berlin, Turboflotor1000, Sipedon Maelstrom100,
AquaC Remora, ETS
Reef Devil.
They range in price from around $150 on sale and go up from there. The smaller CPR BakPak, Knop and clones, Seaclones and Skilters as well as many non name brand units may not perform satifactorily and you may wind up replacing them. You dont have to spend a fortune but you generally get what you pay for. HTH
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