Idealconcepts
Aquarium Advice Freak
JTAM963 - Once your tank is cycled you might be fine for a month or two, possibly longer. In the near future your tankwill not be able to house all the fish you currently have it stocked with. From my count you have 8 fish, and one that can hit +14 inches. Jags are typically aggressive fish and in a tank that size he as a very good chance of killing the rest of your fish. If you don't plan on upgrading to a larger tank just to house your Jag I would return him and just keep the Convicts, Firemouths, SDs, and Pleco. What are the dimensions of your tank and what type of filtration do you have running? Keep a close eye on your water paramenters are other mentioned to make sure you have your tank properly cycled. Also skip out on the clown knife, if you had a large tank possibly a 8Lftx3ftWx2H a knife would be fine with other large cichlids. I wouldn't add any other fish since your tank is not cycled yet and when your 7 (minus the pleco, depending on what type you have) fish are full grown your tank will be over stocked. Since you work at Petsmark you will be able to get good deals on equipment, food, etc.