Best part about trying a cap is that most people will break you off a piece for just $5-10, so it would be a cheap investment to see if your tank is ready. Heck, if you were close, I'd break you off a chuck off my green montio cap colony for free.
the caps are easy and grow pretty fast, just keep it towards the top of the tank, and make sure it has room to grow
Where should you place monti caps? I'm looking at getting a red monticap frag as my first ever SPS, and some have told me to place it around the bottom, others middle, others up top.
Ok I've thought of a place I would like to place the red monti cap, its between the middle and the bottom. Hoping this works out: I keep clean water, dose (Kh, Mg, Ca with Fluval Essential Ions Raise and Maintain) and test.Depending of course on how strong your lighting is, middle should be the highest you go since once established caps will grow fast and quickly shade out what ever is beneath them.