I've just started working with HMC3. Bought from ATTC, using MEM with 10% FBS 1%P/S. I split them last week when they had reached 80%. They do not seem to be growing but for the most part look healthy, although I do see some floating cells. I was told not to change media as often as the ATTC guidelines suggest, will this slow down division?
Any help would be great!