Unless your tank is something other than a standard 55g, I would bag the second hand tank and head to Petco while they have their dollar per gallon sale going on and pickup a new one that is already clean and has a warranty. What's your time worth to you? By the time you figure the cost of the cleaning supplies and your time, you'll probably be a head of the game with a new tank.
If you decide to stick with the used tank, fill it and check for leaks before you go through the trouble of cleaning it. Clean junk is still junk......:headwally:
I called last night and confirmed, Petco has several 55 gal tanks (a 40b also....), and yes, the cost? 55 bucks. What a great deal.
Now, the filter system I have is kinda complicated, I suppose I should have taken pictures. I put everything in vinegar and water last night, they are soaking as we speak. I have what looks like a 2 compartment reservoir, with 3 pumps. All 3 pumps make some serious noise, which leads me to my next question - while at Petco, is this a good place to look for a replacement filtration system or should I go to a local store? I know, more sticky/research is needed. In fact, I just talked myself out of buying anything more than the tank at this point. However, this reservoir has a place that has a bunch of little rubber/plastic balls. They guy I bought it from called them bio balls. The water is pulled from the tank thru a filter, runs over these bio balls, and then into another partition in the reservoir with yet another filter. All of these were pretty much just shut down and left to dry, so everything has a dried sea water crusty coating on them. I'm looking at this puzzle and wondering if it is even worth messing with. Oh yeah, the light - the light is good. It is a double Coralife fluorescent. Both are double bulbs, one side is just a florescent white, with a bluish sort of light. The other side was a actinic, which did not work. 54 bucks on amazon, on the way already. So, for a reef I have an actinic light, which made me happy.
While rinsing/soaking the other parts, I looked at the tank I got and it is really crappy. Yeah, Petco to the rescue on this one...