Hello all this is my first thread here. I’ve been checking out this site for some time but didn’t join until today. First off, it’s a great site and I’ve really enjoyed it. So, here is the question. I have a 20H with an aquaclear 150 filter. The tank has been set up for around four months. It has 6 white cloud minnows in it, that is all. I was wondering, if you had this set up what would you add to it.*GOLDFISH*