The temp of my pond has gone up a lot over the last week today its 8.4C,tropical , its been hovering around 5-6C for ages and fish have stayed near the bottom. Today I've managed to have a good luck at them as there all around the top, there all looking very well apart from 1 fish that's had a mouth growth issue last year. After conversations with Dave 54 the prognosis wasn't gud........, but it seems to be ok the growth is still there but the fish seems to have grown as well, time will tell. Saying that all the fish seem to have grown even though they've not been fed for months ?? Could it be algae.....the wonder food