It’s January 15th which means that Advanced Aquarist has released another issue of the venerable online magazine. The first issue of the year has some original articles from Ken Feldman, Sanjay Joshi, Dana Riddle, myself and the announcement of the 2009 book for the second half of the year. The Advanced Aquarist book contains all of the articles from July to December of last year and it conveniently packages all of the online content into an easy to read in bed format. The second 2009 AA book is $29.95 and it is available from the CreateSpace store. Ken Feldman is continuing his work with Protein Skimmer performance and this time his data seems to indicate that there isn’t actually any protein in skimmate, go figure. Dr. Joshi is up to his old tricks with some fresh PAR and Kelvin values for the AquaMaxx 14K metal halide lamps from Marine Depot which are surprisingly near-identical in output and color temperature of the hobby favorite, the Radium 20,000K lamp. Meanwhile, Dana Riddle overwhelms yet again with the first long part of his growing lexicon on coral parasites with this installment focusing on copepod coral pests. I am particularly fond of the piece that I wrote entitled Reefing Like it’s 1999 which is a neat look at the history of lighting and flow products over the last decade of reefkeeping. It’s not meant to be comprehensive by any means but it’s pretty accurate at covering all of the major milestones of the last 120 months. There’s lots to read in this month’s issue of Advanced Aquarist, will you be able to read it all before the next issue?