My RSM 250 is in an ugly algae stage and I'd like to purchase a couple of tuxedo urchins to keep it in check. Am I correct that ich cannot encyst in them and that they'll be safe to be put in the DT with a bath in DT water?
I also chanced upon a handy invert QT table a few days ago (which suggested that some have a 16 day period), and then lost it (after purging my history). Does anyone have a link?
I also chanced upon a handy invert QT table a few days ago (which suggested that some have a 16 day period), and then lost it (after purging my history). Does anyone have a link?


