Looks good. I would suggest doing a union on the emergency overflow drain as well. Next to your primary's union below the OF.So a lil update.
I recently started using Chemi-pure elite in my hob filter, water is CRYSTAL clear!!
I have almost everything ordered for the setup of this 40 breeder.
I have a Fijicube 800gph overflow.
I'm going to hard plumb the entire setup with dual 1" drilled returns with 3/4" loc line y'd off on each side going into quad wide flared nozzle tips.
A little more in depth, each sides return will incorporate 1" thread x slip bulkhead threaded into that will be a reducing coupler to go to 3/4" threads then the 3/4" loc line adapter screws into that then directly on the adapter will be a Y and then 2 short pieces of loc line with wide flare nozzle tips at the ends. (The short loc lines will be the 6 segment loc lines halved into 2x 3 segment lines.)
I have a crude drawing of what I'll be doing except I edited it and added some red lines where I'll be putting extra unions.
Also in that drawing I accidentally crossed the drains OOPS! And there is 2x 45s coming out of a T...I'm going to replace all that with a 1" pvc Y slip/slip/slip connector to reduce fittings and cost.
Right away next month I'll be ordering the final pieces needed to set this all up.
She wants vikings colors plumbing so here's a preview of that as well.
I will document the build when it happens and post it up on here.
For easy removal, issues, or for whatever u may need to do so for. Cleaning, a move. Whatever. I had to put 3 unions on my synergy shadow. Was a pain but itll be worth it when the time comes if I need to remove it.