1) Use the biggest sump you can fit!
Knew this was coming from someone
I agree on the external pump, no need for it and it will end up taking space away.
I will try to explain what I mean. So as a long time lurker now, I see on youtube and read on the forums about people having okay or "perfect" chemical levels, alk, calc, mag, etc. Many of these people show proof they maintain a stable system and show an ICP test with no indications that water chemistry is off. I've always found this to be very strange considering everyone preaches stability and maintaining parameters is the key to success (not disagreeing, this is the foundation). However, this leads me to wonder what is going on... is there a contaminate in the water we can't test for? Well... I've seen these people struggling running carbon or other media to remove those things... or a good water change schedule. Either way this could be the problem, but is unlikely if those mitigating controls are in place. This leads me to believe something else we can't see or measure is causing the problem... and the only thing left is bacteria. I'm a firm believer in good and bad bacteria just like anyone else.
Let's take humans as an example... we take a group and put them in a room. There is bacteria all around, some is okay and we can fight off with our immune systems, but others are bad and aggressive causing us to get sick. Eventually if the bad bacteria takes over it will dominate and everyone in the room will be sick or die. Why wouldn't this hold true in the aquarium? For whatever reason, the bad bacteria was given the right conditions to out compete the good... causing an imbalance and leading to coral death, with SPS being the most sensitive they die and LPS, softies look fine.
So that's the short, very scientific, version of what I mean. Does this make sense to anyone else or am I full of ....?
