I decided to get another set-up cause the zebra felt it was too crowded in a 20 gallon. It dominated the crabro & the former-dominant l. caureleus. It was due to a change in the setting of the tank by accident. Man african cichlid heirarchy is a b___! So I've decided to set up a new tank, a 30 gallon, to house my l. caureleus. I have to do it quickly or he will die of stress! It's the first time I'm using sand, which is Aragonite. HOW LONG DOES THIS SAND SETTLE? HOW CAN I PUT THE BACTERIA FROM THE OLD AQUARIUM TO THE NEW ONE IN AN EFFECTIVE WAY? Good help would be appreciated. I got bacterias like Biozyme & Cycle but I heard this new thing called Right Now Bacteria that cycles a tank in 24 hours! or should I just get the bacteria from my old tank? I dunno, & the sand's frustrating me.