i got the gravel for free, and i did want black, and there was a 5 gallon bucket full of it but it had the colored spread out through it. so i saved the money and used what i got for free. after i took these pics my kid decided the tank needed something extra so he thru in a box of rocks i had and a small bag of first bites fry food, a digital thermometer, and the plastic holder for the thermometer. then for the grand finale, he unplugged the power strip and cut off the heat and filter. considering building around the tank and turning it into a headboard for our bed. although having an oscar look at your while being intimate might be disturbing....