Have had 4 Chromis die in last 30 hrs 2 in QT and 2 in bag on way home, Please help the 2 in QT were purchase 2 days ago and the 2 on way home were today. 1. How old is this aquarium? Aquarium has been running for a year 2. If less than six months old, what is ammonia level? Older then 6 months 3. What is SG of this aquarium? How measured? 1.025 refractometer 4. When was the last fish added to this aquarium? Today about 3 hrs ago 5. Was it quarantined? If so, how? And how long? Was it prophylactically treated? How? It is in quarantine now, not been treated with anything yet 6. If you are using a copper based medication, which one? How often do you measure level? When? Nothing yet, no medication added 7. If you are using hyposalinity, how did you calibrate your refractometer? Not using 8. Please describe in detail, the appearance of the fish? If there is one or more pimples, are they lumpy? What color? I bought to batches of Chromis, in most recent batch, 2 of them died in the bag on the way home.. (The tank i got them from at LFS there were several dead on bottom and I wanted to try to save them so i got a deal on them worth trying) They were breathing rapidly and i saw a few with missing scales.. Some of them were a bit darker then the others... The batch before the ones i got today have been in QT for about 2 days.. I've lost 2 of them.. 1 yesterday and 1 this morning. Looking at those it seems there might be a lesion where i can see a red line on its body maybe a cut or just a vein.. 9. Please describe the behavior of the fish as best you can. Is it acting reclusive? Is it always up towards the top of the aquarium? Is it avoiding light? How active is the fish? I try to keep the lights off but when I turn them on the fish are swimming together all around.. When i turn the lights off they usually split off where 2 will go to one corner and 4 in other and so forth.. In the bag they stayed on the very bottom.. 10. Is the fish eating? What? Yes most of them seem to be eating.. Tried to feed them brine but they dont seem too interested however with Mysis shrimp they eat it up very good.. I try to mix Garlic guard with their food to make them have more of appetite ~ I hope i gave enough details on the questions asked.. Any help would be much appreciative.. What I have currently on hand is.. I have: 1) a cooler with a heater and fresh RO/DI water at 78 degrees ready for freshwater dip if needed 2) Organi-Cure - Fast relief for Ick and protozoan parasites, (ingred. Tri-chelated copper & formalin) 3) AmQuel Plus (water conditioner) by Kordon 4) AmQuel Plus (ammonia detoxifier) by Kordon 5) KanaPlex by Seachem 6) Metronidazole by Seachem 7) ParaGuard by Seachem 8) Coppersafe by Mardel 9) Maracyn-Oxy by Mardel If pictures are needed, I possibly can get.. I have kept the fish frozen incase more info or pictures are needed~ Thanks in advance! Im up to 6 deaths in last 48 hours any help would be greatly appreciated I decided to do a freshwater dip for 15 minutes after the 6th one died.. and i changed about 50% of the QT water out with my reef tank water Dont know what I should do next..