I have a planted and well established 20 gal. tank with 6 White Cloud Mountain Minnows (planning on getting 3-5 more) and 8 Panda Cories. I'm currently looking for a good centerpiece fish for the tank. I have had bad luck with Dwarf Gouramis in this tank. I've had two and each only lasted for about a week so I am looking for a different kind of fish. I've since read up on dwarf gouramis and found that they tend to have trouble with fast tankmates like the WCMMs and can be very skittish. It is also possible that the two I got were from bad stock or had a disease. I'm currently looking for a similar sized centerpiece fish that will do better in my tank. My tank is a 20 gal. tall. Dimensions are 24.35"L x 12.5"W x 19.25"H.