Hi there, wow MFT has a new look...
Ummm Labs are the wimpy kids on the African playground.... If you are shopping at a chain store you are likely seeing the following African varieties;
Yellow Labs
Kenyi (blue with black bars)
Zebras ("red" actually orange, blue, OB (speckled), pearl, and some varities that occur when the blue red and white are crossed, blueberries, calico etc)
Bumble bees (look just like their names)
Acei
Jewels (red or green)
Ok so petsmart, petco, pet suplies etc tend to have these varieties all the time. The only one that is a decent match for the lab is the Acei.
The others will kill or stunt your labs in short order. Yellow labs are also significantly more timmid then others in the labotropheous family.
If you are going labs I would mix with Haps and Peacocks. Or short finned tetras and barbs.
If you are trying to scape your tank use pea rock for substrate (2.99/bag 1-2 bags will do a 75gal tank) and Slate from home-depot. Along with terracotta pots. Get a piece of coarse sand paper and make sure all rough edges are sufficently filed down. I like to break holes in my pots so they look like houses. I break the slate up and make pillars then do a stack in the tank.
As far as numbers go Africans don't pair up, so really any kind of numbers you like will work just keep in mind the threshold for the tank. Africans will crossbreed and there is no market for half breed fish so if you end up with fry just leave them in the tank.