I purchased a six-line wrasse two days ago and introduced it into my tank. However, when I woke up this morning, I couldn't find it anywhere. Finally, upon closer inspection, I found it on the sand at the bottom of my tank with its tail missing. I'm not sure how it could've died, but it seemed fine yesterday. I'm not sure if maybe I didn't acclimate him correctly, but I used the same method for my fish that have been in my tank for a couple weeks. I don't think I have any other aggressive fish or inverts in my tank:
------14G Biocube---- (Established on 12/17/2010)
Fish
Clownfish
Firefish
Purple Firefish
Invertebrates
Serpent Star
Pincushion Urchin
Corals (all about an inch large)
Ricordia
Candy Cane
2 Polyps (purple green & purple/pink)
I also have a few hermit crabs and snails.
Water Readings
pH: 8.2
kH: 179 ppm
Ammonia: 0 ppm
Nitrite: 0 ppm
Nitrate: Less than 10, more than 5
------14G Biocube---- (Established on 12/17/2010)
Fish
Clownfish
Firefish
Purple Firefish
Invertebrates
Serpent Star
Pincushion Urchin
Corals (all about an inch large)
Ricordia
Candy Cane
2 Polyps (purple green & purple/pink)
I also have a few hermit crabs and snails.
Water Readings
pH: 8.2
kH: 179 ppm
Ammonia: 0 ppm
Nitrite: 0 ppm
Nitrate: Less than 10, more than 5