dont know what you mean by ideal temps, but they are plenty active from 50-56 drgrees and will be in pre spawn mode gorging on baitfish. when water temps hit 57(on KY lake) for a solid week, usually puts them in spawn mode. the water temp has to be consistent, not up and down. good luck timing it, i took a week of vacation the first week of April in case the peak spawn happens a couple weeks early as some of the guides are saying may happen with mild temps.