Don't worry your not the first to be in your situation either. I have a guy I went to HS with that after HS we parted ways. He ended up going to the Port A UT Marine Bio school and worked in the Phytoplankton research lab. He worked at Petco as well. He saw the horrible shape the tanks were in and began a transformation. He brought in some lights from home, Halides and such, cleaned up the tanks, ordered fish that people really wanted which thier supplier carried, however they were not supposed to order. SPS's LPS's you name it. The store was #1 in the nation in SW animal sales. Well big wig's came out, saw the setup and had him remove it because it wasn't "coorporate approved" So he took it down and new my niece get's to see all the "dusty fish" I tried to save a Racoon Butterfly which began an ICH outbreak that killed over $300 in fish. I now have a QT tank! Don't get frustrated, keep on keepin' on and I hope all get's better at your store.

BTW
My buddy from HS now owns his own LFS, Exotic Aquatic, and one of the other guys works at a competing LFS.