It wasn't that long ago that GSAS was in a similar situation. When I joined in '08 we had less than 60 members and the average turnout at a meeting was about 15 or less. We had no cash and no one in the area knew that there was a 35+ yo aquarium club here.
Today we have over 300 members and a typical meeting attendance is 75 or more. We have savings in the bank and an annual budget of about $20K that allows us to bring in speakers like Christal Kasselmann, Ad Konings, Oliver Lucanus, Ian Fuller, and Gary Lange. We are a registered non-profit corporation in the State of Washington although not a 501(C)(3). If you want information on what was done to accomplish the change I am more than willing to share.
75 Gallon, 2X55W AH Supply CF 8800K, 1XFluval F&P 2.0 48"/59W, 2X Marineland 350 Magnum filters; 45 Gallon Tall, 96Watt AH Supply CF 6700K, 1X Marineland 350 Magnum filter; 30 Gallon Long; Fluval F&P 2.0 36"/46W, Marineland C-220 filter; 20 Gallon, 1X26W AH Supply LED kit, Marineland C-160 filter; all with Press. CO2 and (Calcined) Montmorillonite Clay
Greater Seattle Aquarium Society (GSAS)