RidgefieldClownKeeper;3879331; said:
It's always good to keep more than one. Get the clown a friend, and then add more companions later. I have a 5" one along with two 2" ones. They all get along great.
Adding one at a time is certainly an option, but personally I would advise that you save up & either add a few (2 or 3) at a time or add them all at once... There are several reasons :
1) Its almost guaranteed that your new CL's will have ick when you bring them home from the LFS. They always do. So, if you buy one at a time you will be adding a fresh case of ick to your tank each time. This costs you extra money in meds/salt, keeps your fish in medicated water for extended periods of time, requires you to keep the temp elevated while you treat, raises the odds of re-infecting any fish that is already/almost recovered & risks adding new strains of ick to the system. I have 3 medium size shoals (5-20 CL's each, depending on tank size) across 3 tanks, plus 2 quarantine tanks for all the new pickups (I just cant pass up an oddball CL!) & trust me, its a whole lot easier to treat a group all at once.
2) Your CL may be lonely now, but he will survive being alone until your next paycheck. Adding one at a time may also cause them to be territorial, especially if they're different sizes or your tank is short on hiding spots.
3) You WILL get addicted to these Loaches & find some single oddball CL @ the LFS in the future that will just beg you to buy him. When you do, you should be able to add him to an existing
shoal (after you quarantine him for a while) to make him more comfortable & prevent any further stress/territorial behavior.
I'm constantly adding to my CL collection & these are just my experiences... Good luck & WELCOME TO MFK!!!!!!