Thank you for responding. Yes, I well remember the trials of poor old Spineless Si on Springwatch, and the repeated destruction of his nests. I think fish don’t get a fair slice of the Springwatch action, especially as it takes place in the middle of the spawning season. Its difficult to film, but there are ways. The Avon Roach Project for example has spawning boards, which are easily filmed, and tonight Springwatch had a presenter and a cameraman sitting in the rain in a back garden for over 6 hours. We need more fish on Springwatch!
Thanks for the video link. There is some good info in there. Advice on substrate and filters, for starters. Like you, I'm keen to hear from other people on this.
Thanks again. Much appreciated.
Baz.