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Old 01/07/2008, 03:08 PM
sfisk79 sfisk79 is offline
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Join Date: Jan 2008
Location: Lexington, KY
Posts: 5
fish dying, Could it be the snails?

I have a 120 gallon, several year-old mostly fish and live rock system which I was beginning to populate with some hardy species of soft corals. This included 2 pink mushroom corals that were doing well for about 6 months and split to a number of about 12 total. I added a couple of other propogated green mushrooms on the other side of the tank from a friend's system that were doing well and splitting. I also have about a 2" size toadstool and some "devil finger" leathers that are also about 2-3". A few weeks back my mushrooms started to sag and shrivel, the pink ones especially. Now the green ones are following suit, and the devil fingers don't look so hot. I checked the water parameters with zero ammonia and nitrite and 20ppm of nitrate which is par for the tank. I supplement with iodine, calcium/Mg/Strontium and amino acids. To summarize, everything has been status quo or better in terms of water quality/tank conditions, but with these shrooms shriveling up I can tell things just are off. I started to think it was just a failed experiment into the world of corals until I noticed my purple pseudo missing today (read: dead) and my Eblei angel breathing a zillionX/min and on death's door. This morning, my flagfin is dead. Water parameters still checked out. I haven't targeted the cause of the coral decline, but given the lack of changing conditions and their previous health and prolification, I suspect some kind of allelopathy. QUESTION: Could the fish be affected by some type of soft coral chemical warfare to this degree? Some of the tank inhabitants appear to be unaffected, including cleaner inverts(snails and hermits), shrimps, and a galaxea coral which I acquired a year ago and appears well(I realize this is a actually a pretty delicate stony coral). I figured some of these other organisms would be the canary for water quality issues. In the meantime, on a friend's advice I have started to run large amounts of carbon today in an effort to pull out any toxins that may be in the water. Should I remove the remaining mushrooms? Incidentally, the pink shrooms were very close, and several actually growing on the stalk, of the toadstool-they seemed to almost have an "affinity" for it-before dying. Any advice into this dilemma is greatly appreciated.


The only other thing that has changed in my tank recently is I put about 50 new self-harvested caribbean snails( USVI) which are alive and well in the tank. These were placed about mid December. Could they be the culprit or vector for some parasite? There is nothing visible on the fish that I can identify whatsoever except for the respiratory distress and then quick demise. Perhaps the invert/mushroom issue is only temporally related and not directly related...
 

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