I have recently(numerous times) added a few snails/hermits, etc. to my tank. I have been acclimating them and have noticed only 30-40% have survived. I checked water parameters and they are where they need to be... Nitrates are slightly high b/w 5-10ppm. I also just bought a big clean up crew from reefcleaners, they have only been in the water for a few hours, but majority are still where they landed in tank. Are there any other parameters I should check, beside nitrate, ammonia, Ca, alk, pH, phos? I even checked copper and it was 0ppm. Would an electrical issue cause this? I have not felt anything with my hand in water, but not real sure. I do have a hair algae issue that I am trying to clean it up. Any suggestions on what else to check...I just have a bad feeling that it is my tank and not the livestock(maybe a bit paranoid). Thanks in advance guys