Here's one of the types of algae I have popping up in my tank:
A 1" long chiton:
A sponge that has been around since early summer, getting larger except for one damaged area that was covered in cyano for a little while:
Weird little sea squirts. Nearly transparent, they're popping up everywhere in the back of the tank. Probably has to do with how much I'm feeding (too much), skimming (not enough). No big deal though.
Who hasn't seen feather duster worms. I started with two on a piece of caulerpa back in the spring, now my fuge is a veritable worm farm. I scraped a bunch off the glass and threw them in my display tank because I figured my cleaner shrimps would eat them. Doesn't look like it though, in two days they've already started to multiply.
