More locline to the rescue
Here is a picture of the 280g reef as of yesterday.
The new tank is maintaining well. Temperatures range between 79 and 81F from day to day. pH tends to run rather low, around 7.9 to 8.1 but I recently started dripping Kalkwasser to see if that will elevate the levels to 8.3.
I added additional locline to the existing returns, to the point that I could flex them upward like the hump of a camel's back. I drilled several anti-siphon holes in the underside of the hump, and no longer is there a risk of the sump overflowing.
Using the driver from my old Tunze Turbelle, I was able to get one of the Stream pumps running. The other Stream was kaputt, so I coverted the Turbelle into a Stream by using the Stream's impeller, cover guard, and mounting bracket. I also am using the 19v power supply with a new driver. It hasn't been installed yet, but it is ready to go.
My two year old Maxima Clam is in bad shape, and I'm not sure of the cause yet. I pulled it out of the tank last night and cleaned the shell thoroughly, and after target feeding it some phytoplankton in a bowl, I put it back in the tank under a vented cover in case any fish are nipping at it. I'll watch it for the next few days, but things don't look good.