The red leafy stuff looks like macro algae. Up to you if you keep it or not. I don't mind some 'natural' stuff in my tank
The red hairy stuff is red turf algae. It may go away on it's own as your tank cycles/matures. If it gets out of control, get some Indonesian Turbo snails. They love this stuff. Mexi turbos may eat it, but they don't last as long in our tanks
The little white stick in the pic with the snail looks like a Vermatid snail. Get rid of it pronto. Don't panic, but break it off and cover it with epoxy before it becomes a plague in your tank. They spread like crazy - I should have done this from the start and now they are all over. Messy little critters
The pink/red looking thing in pic d30 looks like a feather duster
If you're asking about something else, I can't see it
Look online for pics of Aiptasia, Mojano, and Hydroids
The first 2 must go, and the third are harmless
Maybe you could get a clearer pic of the things you are showing us ?
The 'plating' purple stuff is an algae. Mine isn't out of control
The other purple stuff that covers rock like it's painted on is corraline algae. Sign of a healthy tank, or at least good levels of Alk/Ca/Mag. Some like it, some hate it.
In the pic with the snail, I don't know what the pink/red thing with the white center is - I can't make it out
Nice lookin' frags. My leptastrea has doubled in size over the last year
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