active swimmer

It’s late at night and I was observing the night life on the reef, and all of a sudden this red like worm came swimming up to my light. I’ve never seen this particular creature before but it resembles a bristle worm but I’ve never seen them swim, and holy cow does this thing swim fast. Also has...

I am looking for a fish to replace my dwarf angel. I have a 35 gallon tank. Inhabitants are valentini puffer, 2 blackstorm clownfish, snails, hermit crabs, emerald crabs, & orchid dotty back. My orchid dotty back killed my angel. All fish had a semi aggressive temperament. I never had to clean...