I have really been enjoying the kml fry I bought on a group buy last month. I bought 5 but 2 were for a co-worker who recently took up fishkeeping. The three I ended up with are always excited and active at the top of the tank when I walked up, eagerly awaiting their meal and begging for more even after I knew they have had a tad too much already. Mine were the smallest of the batch due to being the last to pick up my stock. I was still more than pleased with them. The largest of my 3 has been boss the whole time I've had them but only recently started causing fin damage. I decided last week to get them setup in my divided 40 long and did so over the weekend. It only took 2 days for the fins to heal on the smaller 2. Having them separated did wonders for the smaller fish, it only took 2 days for the fins to heal on the smaller two and there stress bars went away. I noticed monday night that the smallest of them all had double flower lines! After work every night I get home around 6 p.m. I go around to all my tanks, turn the lights on, and do a head count along with quick look over of all my fish. Tonight was no different. All but my 40 long are in my 24'x30' living room. The 40 is upstairs in my 12 year old daughter Jessica's room(the only child that keeps a tidy room!). After my rounds in the living room with no apparent issues I made my way upstairs and into Jessica's room. I leaned over and turned the 2 light strips on and saw the middle area of the sectioned tank was empty!! I looked right! One fish! Left! One fish! I was just about to dive to the carpet when I noticed the pale white carcass on the gravel. It was my small double flowerlined kml with shredded fins on it's side with a motionless curl to it's body. What can I say? Did I cause this? I should have know there was a 3/4" gap between the divider and the hood. Would it still be alive if I never transferred and divided them? Such dissapointment. All the time and care put into raising healthy fish with great potential. I guess I shouldn't be surprised. I knew the nature of the beast and that's part of the reason fh's are so appealing to me. All I can do now is focus on the others and do everything in my power to keep another incident from happening. I might sound overdramatic about this little 1 3/4" fish I've only had for a month, but I, as with many other who will read this do, develop an emotional attachment to the animals I care for and definitely feel depression and guilt when animals I am responsible for suffer or die under my care. Especially when they could have been prevented!! Sorry for the drawn out, detailed story but where else could I vent about a dead fish where anyone wouldn't think I was a mental case?Happy fishkeeping!!