I ordered 3 as I want to quarantine them for at least a month and monitor them better. I was going to order some gast. with them but frank did not have any in stock so I just got the sewellias. I'll probably wait until the sewellia are in the main tank and order more. Plus it's a 20 gallon long so I want there to be enough room for all the loaches. My stock will most likely be: 6 gast. and 3 or 4 sewellias. I know what you mean. Sewellias have been on my list but I never had the tank for them. Now I do as I'm not breeding fishes anymore.