Something that I feel worth mentioning on adding FHM that most novices (like myself) will not be aware of ( but is included with alot of past posts).... Sort thru them to make sure you aren't getting any non-wanted fish along with them. It is tempting to get the FHM from a very easy/local source (like the fish truck guy) and you end up with a bunch of bullheads or LMB in there that will really cause you grief down the road. If you don't know their reputation, I would sort thru them one by one and remove anything that doesn't seem right to you. Even with the vendor I mentioned above, I still sorted thru them handfull at a time to be sure there weren't any strays. Don't do this by your pond because it is easy to throw a suspicious fish the wrong way and in the pond it goes.
