Looking for a Hydrometer and a canister filter.

[mrhasan]

Yes get a refractometer from ebay. Kinda like the one's in the store but without any brand. Plus the only different that I would guess between the cheaper ones and the brand ones is that you might need to calibrate the meter more often. Other than that, its just a piece of prism through a tube so shouldn't have much of a difference :P

Stay away from hydrometer! They are probably the worst piece of equipment made for saltwater :|