The following are the biggest percentage decliners on the TSX Venture Exchange in mid afternoon trading with their price movements LOS ANDES COPPER (LA.V), $0.09, 0.04, 30.77% FORMATION FLUID MANAGEMENT (FFM.V), $0.0950, 0.0250, 20.83% ALLIANCEPHARMA (APA.V), $0.40, 0.10, 20.00%