So for Clutch 8, I'm going to count days by when the majority of them hatched, making them 3 Days old now. If some of the ones who hatched a day or two earlier make themselves present (will be noticeable when they go through meta), I'll make note that they were probably born earlier.
On Day 3, I think I only have no more than 20 left

Siphoned off a bunch of dead again this morning. Checked ammonia, it was 0 and it has been 0. I've still been using amquel (not ammo-lock of whatever I said before) just in case. I've been slowly lowering their salinity as well, getting it down to my goal of 1.020 today. Otherwise their environment seems fine and they have more food then they will ever be able to eat and besides that, deaths from starvation usually don't occur until Day 3 or Day 4 when their yolk sacs run out.
My theory now, as to why all the early deaths is that the larvae simply aren't very strong to begin with which I was suspicious of when looking at them in larval catcher. Many just laid on bottom and were not very active at all. Instead of making changes with them, I'll be making changes with mommy and daddy. I've never really liked the color of the eggs (except that one beautiful clutch) they just never seemed orange enough. And apparently, the more orange the eggs, the better. Last night I ordered a product called NatuRose, which I had read about previously. It is basically a powder made from the carotenoid pigment, astaxanthin. Astaxanthin makes orange colored fish, realllly orange and it should also cause their egg pigmentation to become really orange. I'll be adding this to some flake food for them and then use fish oil to bind it all together. Krill is also a source of astaxanthin, so I may pick up some frozen krill and feed them that as well. I think I will also be using Naturose for the babies to enhance their beautiful colors.
It won't help the clutch they should be laying soon, and maybe not even the one after that (depending on when it gets here), but hopefully clutch 11 will be going strong
And now to end my post, a picture of the big boys sleeping. Please excuse the quality as I was using a flashlight to take the picture

It only looks like a few of them, but really they're all snuggled up together at the anemone base in two balls.
Clutch 2 is 79 Days old and Clutch 4 is now 53 Days old