ANTIBIOTICS!?! Ok (settling down now....breathing...becoming less dizzy), please don't take this the wrong way but what possessed you into putting anti-biotics in your tank? Please again understand I am not flaming you more than I am in shock. Is this a fish only tank? Most antibiotics contain copper which is bad news for inverts and corals. This is most likely the culprit for the loss of pods
won't kill off your critters directly. What type of antibiotics did you use?
A few more ponts real quick: Treating your cyano
outbreak with antibiotics won't fix it, but delay it. There is a reason you have it (i.e. excessive nutrients). If your meds did indeed have copper in it, your rock is now loaded with it.
Again, I am probably giving a knee jerk reaction and have to intent to offend. Just want to see what's what.