Sanjay Joshi


Sanjay Joshi in real life is a Professor of Industrial and Manufacturing Engineering at Penn State University. He has been a reef addict since 1992, and currently keeps several reefs aquariums at home including a 500G SPS dominated reef. He also co-manages the 500G aquarium at Penn State.

Dr. Joshi is actively involved in educating the hobby on various topics such as lighting, aquarium system design and general reef husbandry through his publications in reef magazines and lectures. He has published articles in magazines such as Advanced Aquarist, Reefs Magazine, Coral, Marine Fish and Reef Annual, Aquarium Frontiers, and Aquarium Fish.

In addition he has been an invited speaker at several marine aquarium society meetings in the US and Europe. He received the MASNA award in 2006, for his contributions to the marine aquarium hobby.

Conversion of a 500G Reef from Metal Halide to LEDs: A Personal Experience

This talk will discuss my personal experiences with conversion of a 500G SPS dominated reef from Metal Halide to LEDs. The talk will focus on the rationale for change, the selection process, firsthand experience with changes to tank with LEDs, reflect on the validity of arguments for energy  and cost savings,  and quantitative and qualitative changes observed.