algae

[scub steve]

im having some trouble with my new tank i just set it up and about 2 weeks later i have a copper color looking algae growing on my sand i do not have a protien skimmer as i dont live anywere close that sells them and im kinda broke right now. i have a 92 gal tank with a 150 watt metal halide on it and a 96 watt power compact it has a sump and i have a fluval 304 on it too with a few powerheads and a mag 12 for flow what am i doing wrong my ammonia is up but all other levels are fine