ID help please

[Richard]

Unknown = Aracnowebicus Onglassicii
Unkown2 = Blurrywhiteri Blobicus

Seriously, I think unknown.jpg is some type of hydriod. Unknown2.jpg looks like a bleached mushroom to me but the pic is pretty blurry, is it hard or a softie.

Some good reference here... http://www.petsforum.com/personal/trevor-jones/hitchhikers.html

[DeletedAccount]

Welcome to MAAST!

[Instar]

greenmako, welcome to MAAST.

The first colony is a white hydroid. Once colonized in the reef they will sting other things like zoos and stoney corals. Many things will trample and eat them, but, they are still able to proliferate with the planktonic foods we feed the reef. If you can get them out now before they get all over the place, thats best. They can sting larval creatures and fishes, killing them. Potent for such tiny little things. I always enjoy stuff like this till it gets too close to something and stings it. My zoos eventually overcame it with the help of hermits and snails. It bothers things if it can get a hold underneath them, close to the base. All in all its not dreadful so long as there are predators to keep it in check. Many algae eaters and rock pickers will eat it circumstancially as they look to feed on algaes.

Keep an eye on the second one. If it developes a very short club shaped tentacle ring and moves under the rock in the dark, get it out. If it stays in the light? Good. Looks right now like a mushroon, leather or maybe another polyp of some kind. If it has a tiny hole in it, its a type of tunicate and cool as well.