Our local ‘first responders’ in conjunction with the British Heart Foundation held a healthy heart day in the local school recently. Most of us will have seen the British Heart Foundation adverts with a tank of zebra danios as these remarkable little fish have the ability to regenerate their own hearts. I have no idea of why or how these little fish do this, all I do know is first responders wanted a tank of zebra fish for the day. No problem for me. One 60 litre tank with 200 zebra danios in it raised just over £80. I set the tank up from scratch on the Friday night and when I took it to pieces on Saturday night I had lost only one fish. The aquarium supplier will claim this is down to their brilliant tank, the fish supplier will say it’s their wonderful fish, but I reckon it was down to my fish-keeping skills – and I’m sticking to that!