I'm new to marine aquariums and found out today that I
needed a protein skimmer. My sister gave me this 75gal
tank with all the fixins. Sand, rocks, coral, pump,
UV sanitizer (sp), wet/dry filter, wood cabinet, aquarium
light. I don't think the sand or rocks are live.

She ran this aquarium without a protein skimmer
for years and never complained about losing fish.
And on my frequent visits the water always looked
really clear.

Said all that to ask this: what brand of protein skimmer
should I consider? I've been looking at a SeaClone from
Aquarium Systems. I can get one for a 100 gal tank from
Petsmart for about $80. But I'm not sure if that includes
the pump.

At the least what brands should I stay clear of? Thanks!