i use to have a tank set up with red oscar's. i had the tank set up for a few years and then had an outbreak of some disease that killed all but one. i knew there was no way to add more fish so i got rid of him and the tank. I am now excited to start my new tank! it has been about 4 years now since my last. I am definitely wanting to start a cichlid tank and im leaning towards a Mbuna tank. i really enjoyed the oscar but i think a 55 gl tank isnt quite big enough and im looking for less aggressive fish. as of now im thinking yellow labs, red zebras, and Pseudotropheus saulosi. Im thinking i could probably have 3 to 4 of each specie considering they are not very large cichlids. does anyone have any other suggestions? im open for any ideas. My other decision im trying to make is if i want sand or gravel. my last tank was gravel and *** never used sand but love the way it looks. if i used sand what type should i use and how hard is it to keep clean? is normal play sand sufficient? My last tank to cycle it i used some type of bacteria stuff to speed the process up. i have no idea what it was called but i still let the tank set for 2 weeks before adding fish. Should i use additives like that to speed up the process or should i let it go naturally and have a couple hardy fish to help speed it up? i want to do this right and not rush anything. *** read some about bio-spira. is this stuff good and is it true you can add your fish even a day after using it? i appreciate any help you all can give me!!!