I'll fill in while John is replying. The key to any fish addition is adding a Healthy fish that has been fully acclimated and is able to fend for itself. Aggression is all part of introduction, but having a fish that is put in without going through a rigorous process of acclimation and QT is a recipe for disaster.
Steps:
- EVERY fish that is added to a system should go through QT. QT is not just for curing any issues that the fish comes in with or irradicating any pathonogens. It is for getting the fish acclimated to captive life, your tank parameters, and prepared foods. Every fish should go through an extensive process where it is not ready to go into a tank with aggressive eaters unless itself is an aggressive eater.
- Each angel that I have goes through a regiment of Prazi pro (2 rounds) and 28-45 days of copper treatment.
- During the QT process, the fish is placed in a bare bottom tank with PVC and a couple of pieces of Live rock for grazing and familiarity to previous surroundings
- The fish stays in QT for a minimum of 8 weeks where it is fed heavily and is watched closely for issues and ensuring that the fish gains appropriate weight.
- Once the fish has passed through the medications (mandatory) and is gaining weight and eating a multitude of foods, it is added to the DT.
- An acclimation container (typically a 4 sided clear box is placed in the DT with the new addition within it. This allows the current group of inhabitants to view the new addition and protect the new fish from any initial aggression that may come on in the beginning. I typically leave the fish in an acclimation container for 3-6 hours (unless it is too big) and release it into a dark tank for 24 hours.
As for coral...no idea on that...my angels ate all that years ago
