Oh hey guys, I forgot to update about the algae. On 10-12 I removed several pieces of rock that definitely had dino on it, scrubbed it and let it soak in a hyd. peroxide bath. Well, as of today, there is no sign of it returning! Knock on Wood LOL. So far that worked well, and I have not seen any bad effects on the treated pieces of rock. The hairy mat of algae that was covering my sand is gone, and it seems I am left with a rusty colored diatom bloom from the new sand that I had put in. So, we will see. I think that I will dose algaefix weekly from here on out.