Hi, I'm trying to get into the fishkeeping hobby and am wanting to reduce the startup cost without reducing the quality of my steup. At the moment, I have a chance to buy a 55 gallon setup with hood, filters, gravel, driftwood, etc. for very little money, but the person is a stranger. seems nice enough. The tanks are drained but dirty, lots of buildup on the glass, etc. There is also a 75 gallon available, but doesn't come with the filter etc. Is it worth it to take a chance on them? The owner wants 75$ for the smaller setup, and 80 for the larger. The larger is an Oceanic tank, don't know what the smaller is.