[Cougra]

JKsocr4:

Welcome to the Sanctuary.

I'm sorry to hear about your loss. Unfortunately I don't think it was feeding them that was the problem but was a common problem called new tank syndrome.

This was most likely the result of your tank cycling and elivated levels of ammonia and/or nitrite in the system. These compounds are very toxic to fish and easily measured with appropriate test kits.

Have you done any measurements in your tank such as ammonia, nirtIte, nitrAte, pH, Specific Gravity (salinity) and temperature? How much rock do you have in the tank? What size tank do you have?

I highly recommend that before you add any more animals to the tank, leave everything alone and get a basic book to read such as "The Conscienence Marine Aquarist". This will help you get a basic understanding of the start up process of the aquarium.