Hello all, I've recently added some hammer coarls they both have 3 heads each and they where doing great when first introduced to the tank about 2 weeks ago but over the past 2 days they've been expelling brown goo and receding at a rapid rate so their obviously stressed I checked my water parameters ammonia, nitrates, nitrites are all zero temps are at 78 calcium-500, alk-3.67, dkh-10.5, ph-8.3 mg-1500, I've only had my lights on for about 6 hrs at a time to acclimate them and also there in the sand bed in a fairly low flow area not quite sure why there deteriorated so quickly!



