Hi Fellow Reefers,
I have a problem which I am trying to solve and wondered if any of you reading this had come across the same problem. Just a brief overview so I don’t get a squillion questions identifying my system’s parameters, equipment etc;
I own a 600 litre reef system, with sump using a deep sand bed filtration principle including an algae scrubber. The system also has a skimmer, UV, phosphate reactor, auto top up, dosing units, wave makers. The main reef is open top and has no artificial lighting.
Stock including; Regal Tang, Yellow Tang, pair of common clowns, iridis wrasse, bicolour goatfish, lunula butterfly, coral beauty, scarlet hawkfish, lots of hermit crabs, astrea snails, a tuxedo urchin,
2 cleaner shrimps. Acropora corals various, montipora digitate, montipora plating various, variety of soft corals.
Ok, so problem occurred about 12months ago, I bought three fish from a regional dealer with a very good reputation, although through the grape vine there are some disagreements with this. Three days after their introduction into the reef they became diseased and quickly died, unfortunately this also had a devastating effect on the remaining stock, taking out about 40% of the inhabitant. The stock in blue were the remaining survivors. Others did survive but have since died of natural causes. I did contact the regional shop for advice and basically the blamed the entire cause of the situation on my system.
The stock in red (clowns tank bred) and lunula (imported) from different local shop have been purchased in between the wipe out and today and have shown no signs of problems etc.
Up to date – the system has been as near as perfect since then, so I decided to purchase more stock. Two weeks ago I purchased the fish in orange from the local shop however both became diseased but have grown an immunity to this and are doing well. I called in at the regional shop as I was in the area and after much deliberation and discussion, incidentally with new staff, made a purchase of banner fish and iridis wrasse.
Unfortunately the banner fish died after two days but the wrasse is still swimmingly happy. Further investigation has led to the fish purchased which have upset the balance of my reef were all obtained from the same importer which apparently supplies the large proportion of the regional outlets.
Ok so what am I asking for help with? Has anyone had a similar problem and if so what did you do to reduce the occurrence.