Not sure what threads you have been following but most of the ones I have been following are making a full recovery. I'm not saying all need treatment but some do. I'm not one to rush and treat at the first sign of a problem as I know these nems need a little time to adjust. But if they start to inflate/deflate they get it Sadly even with treatment some just don't make it. Thats how delicate these nems are. I treat nems like I would a fish if I buy it its qt'd for at least a week, and longer if needed(nems only fish get qt'd a lot longer). I don't want a sick nem in the same tank as my health ones. Ask OrionN what happens when you do that, it didnt end well for them and they lost two of the best looking mags I've ever saw. There unfourtant loss was a lesson to us all. As for the qt I keep mine the same as the dt. Its stocked with lr with a few shrooms I couldn't find a place for in my dt and a clean up crew 24/7 and is basicily a empty dt until needed. It has a full filtration and lighting system on it as well and gets the water changed the same as the main dt. You may think this is a little too much but the qt/ht cost less to set up than some of the livestock thats been kept in it
Plus should a new nem go south it most times happens pretty suddenly and will nuke your whole dt. But what do I know I do have a horseshoe crab that lives in one of mine half the time so my systems crazy anyways. To the thread starter: let us know if you get the mag and if you do any treatment. AND post some pics lol.