This user is no longer very active on Wikipedia.
E-mail me here.
Wikipedia interests: primarily fish, especially those of significance to the aquarium hobby.
List of scientific publications: .
Personal web page: 
- Ammonites: The Living Past, with Phil Palmer. Published 2003 by Natural History Museum Publishing.
- Cladistics, with Peter Skelton & Andrew Smith. Published 2002 by Cambridge University Press.
- Astronomy with a Home Computer. Published in 2005 by Springer-Verlag.
- Brackish Water Fishes: An Illustrated Guide. Published in 2006 by TFH Publishing.
- Buying Used Macs. .
- Tropical Fish Hobbyist
- Tropical Fish Magazine
- Tropical World
- Practical Fishkeeping