I've walked past a pet shop this morning and I peeked into the small tank where the keeper keeps RES. There's about 2 dozens of them. 1 to 2 inch in size
To my horror, ALL the 1-2 inch RES are either DEAD or half-dead. But in one corner, I see a 1-incher trying his best to crawl out of the tank; it's still energetic and vibrant. It seems unaffected by any sickness that is in the tank.
I quickly paid for this RES and brought it home.
I've quarantined it in a small plastic container. It seems very healthy and strong. It's always busy scrambling around =)
I will watch it over for another 2 weeks or so to ensure it's healthy before I put it into the main tank to join the other 2 RES. (They are about 1.5inch in size). =)