Hi, I am a very recent member of REEF but have found plenty of useful information on tank care so far. I was hoping ya'll could help me with a problem I'm having. I have a 30gallon tank with live rock and live sand. It's become obvious that I don't have enough sand focused cleaners in the tank because I'm noticing a brown film on top. I don't feed excessively, I perform partial changes on schedule, and I have 5 Lg Nessarius snails, 5 Scarlet Hermits, 5 Cerith snails, 2 peppermint shrimp, and a small yellow watchman. Really the only inhabitants that clean in the sand and I'm wondering what else to put in to stop the build up. Also I have a ridiculous amount of small feather dusters and what look like tube worms that made their tubes out of my sand then die and leave unsightly tubes EVERYWHERE.
Sand sifting stars?
Any help that can be offered would be greatly appreciated.