In the past we have done a talk on this about ever other year.
Francine also held a class one time at her house for members. Limited the number of people I believe.
The problem with doing the talk any more often is it only applies to a small group in the club and some of them have seen the talks a few times. LOL
I have seen them all and still don't know what I am doing. lol
The one time I brought in several small tanks, water and fish, and we broke into groups to work on it with peoples cameras. Problem is that was when we had like 40 people in meetings. Lot more work with 2times that many. lol