Hi Ron I'm mel thanks for reply your nems look amazing I currently have a blue tip and a pink bubble tip in a 4ft by 2ft by 2ft tank and a few fish what would best to put in as I would like some corals to .OK, I finally made it back... I had to watch a terrible football game! ;Hilarious;Hurting
Welcome to R2R. You can get most any questions answered here.
As for how many nems you can keep, there are 2 ways to look at that question.
1) Almost as many as you want if you are doing them all of the same species. Personally I have 30+ Rock Flower Anemones, a few maxi-mini nems and a couple of curly-cue nems (they look like big aiptasia with tiny whitish 'knot' or joints in their tentacles.
2) If you are looking to keep a wide variety of nems, the answer is more about space. Most nems do not tolerate nems of other species to get too close. And probably most species will move when they get aggravated by anything.
Here is a pic of my RFAs with a maxi-mini living nearby. I keep these guys in pvc end caps pushed down into the sand once the nem gets settled in. Notice the RFAs are all perfectly OK touching each other. Even the baby RFAs are tucked in close to mom for protection. But there is a clear space, small space, but clear space between the maxi-mini and the RFAs. And it's the RFAs that are making room for the maxi-mini. See the RFA on the left has curled up the 3 oclock to 6 oclock edge to stay clear of the Maxi-mini.