This is my first post on these forums so first I'd like to say hey
. Now on to the good stuff. A few months back my dad came across this tank and got it completely free. It is 7 feet long, 2 feet wide, and 2 feet tall and is about 209 US Gallons. It came with a stand, a hood type thing (useless except for looks from what I can tell), and a trickle filter tank that is 30 inches long, 18 inches wide, 20 inches tall, and is around 46 US Gallons. The tank and sump are both made by Oceanic Systems and the sump tank is a Trickle Filter Model 250. From what I can put together with all the salt in the tank, it used to be a salt water system. I would like to turn this into a freshwater tank, but as the title says, I need a lot of help. What I need help with most is the filter. The trickle tank has a really weird design (to me anyways) and I need help figuring out what goes where on it. So if anyone can help me it would be greatly appreciated and I will get whatever information I can for you all to help me 
And now a few pics
And now a few pics
