I stumbled across this whilst researching my next article. It makes interesting reading.
I have Diana's book and it's excellent, although a little too scientific for my small brain!
http://acuariorosa.blogspot.co.uk/2009/ ... lstad.html
I have Diana's book and it's excellent, although a little too scientific for my small brain!
http://acuariorosa.blogspot.co.uk/2009/ ... lstad.html