Levenberg-Marquardt need info What assume range of parameters??

I need the range of parameters(bounds) for training using LM. These bounds I will use to genetic algorithm optimization these parameters, Therefore,How is the rage? 1. Mu? 2.mu-dec (decrease ratio)? 3.mu-inc(increase ratio) 4. mu-max 5.max_fail (maximum validation checks) 6.epochs 6.min_grad (minimum gradient) My NN has three inputs (each 32 date), and 4 outputs, I use 6 hidden neurons and 1 hidden layers, transfer function is tanh Thank you for this answer