you will just have to see how they go over the next few months. I wouldn't worry about them, there are plenty of things in my tank that I have no idea of and they haven't caused my hands to drop off, yet 
Take another pic in a few months and see the differnce, if any.
Sea squirts are like sponges and are filter feeders. If they are sea squirts it just means you have a healthy tank with some plankton in it.
Take another pic in a few months and see the differnce, if any.
Sea squirts are like sponges and are filter feeders. If they are sea squirts it just means you have a healthy tank with some plankton in it.
