Haha, hawks are pretty amazing fishes...the way they perch on their fav spot in your tank waiting for food. I hah a long nose which jumped to its death. Now having a flame hawk...
Hrmz, don't make it sound as if its the end of the world la. Haha, everyone makes mistakes....we just need to learn from them. Why not start with all the LPS first...they are way much easier.
HRmz, straight forward answer...the lesser pumps you have in your tank, the less the heat that will be transmitted from your pump/powerhead into your water.
You are posting in the wrong place....oh, try to refrain from posting the exact same question in all the subforums. Anyway, hope you'll find what you are looking for.
Erm, tangs are better added to a system together. Once the YT gets used to your tank, i might just decide to attack another other tang you introdce later. My Yt killed at least 3 others including my ABT!~
Maybe you can just stick with those OEM tubes for the moment. My tubes are even worse than yours...if anything starts dying in my tank due to my lousy tubes, i'll let you know!