I just set up my 10 gallon hexagon aquarium, complete with filter, air hose/pump, gravel, plants, thermometor, and light. I've been cycling it for only four days and was wondering if it is a good idea to use a couple goldfish or danios to help move the process along. I was also wondering what kinds of fish would be best for the hexagon aquarium, and won't be too uncomfortable with the smaller conditions. Any advice?