I grow lps pretty fast, and I know I can grow 'shrooms [had some red discosomas on a rock that I had to sell---fast!]. If you match the water params in my sig, that might help you. Rics are a bit more fragile, but I'm pretty sure this [and a not-too-good skimmer] would do well for you.
One thing I've found with my lps that helps them grow really fast is krill. And it's cheap. And dry. I use Tetra JumboKrill dried shrimp, medium, pound them up with a mortar and pestle, and dump them in to feed both fish and corals. I've fragged off quite a bit of coral since I started this, and it looks like I've removed nothing at all.