So I received some different types of pods from algae barn. At first when I added everything I had nothing. But now I have millions of different types. But what type is this. Seems to grow large and I want to make sure they are coral safe because it's amazing how many of this type are in my tank. Can't be a hitchhiker because I have not bought new coral in a while. There are many different sizes. Also on top of that I seem to be scraping algae almost everyday just to keep the glass clear what can I do. Will adding chaeto to my refugium help?