Hey bud, Im 15 and I buy all of my crap. Ive got a 30 gallon with live rock, a good skimmer, my own home made fuge type thing packed with rock and bioballs, then I have a 120 which I am still working on. You should really pay for all of it yourself. And, yea, 3 years to college...if u make it, lol. JK. But, like, if u did get a bigger tank, you could always sell yer old one like they said. Or....GET A JOB!!!! Mow lawns, shovel driveways in the winter time. Sell lemonade for crying out loud. Got any old junk? Sell it on ----. U gotta think. Ive been paying for my stuff since I was 12, and I skrewed up so much back then, and lost so much money, I can kick myself for how much I lost. So, if yer parents dont buy it, then y dont u just buy it?