hey im 18 i dont have alot of cash to spend either so im goin really slow with a 20gal long tank im upstairs so i really cant have any more weight then that but to get more vol. for cheap you could do like a rubbermaid
sump and
refugium. but im going slow to counter my slow income.. i know how you feel its really cool but you cant get a whole lot on the income just go slow and learn all you can.
Also i saved a bunch of money aside to get everything but it still wasnt enough i didnt plan for one of my old filters goin out. soon my experience save all the money you need plan it out good and put some away for unexpected expences.
