This is my 55gal community tank right after reviving it from our basement. It was originally my boyfriend's tank from college. It sat in his basement, covered in algae with two fish barely alive for about 8 months.
When this picture was taken, we just replaced all the substrate because of the algae take over. The substrate was originally black and neon pink/orange/yellow... Aka UGLY.
We saved the two original fish (goldfish and the catfish) and added a few sacrificial glowlight tetras to help the cycling process.