Those pics are actually from 4 different tanks over years, 3 of which are still up and running.
The tanks have very different parameters. The macroalgae tank (most pics of posts #5 and #7) is a very simple tank. 90 gallon DT, 40 breeder sump, 20G secondary sump (pod/mysis breeding tank). DT is lit with a 4 bulb T5 fixture, sump lit with 4 bulb 24" T5 fixture. Secondary sump lit with CFL bulbs in reflectors, to keep the chaeto growing. Heater/chiller combo controlled by my master Apex keep temp steady. No skimmer, rare waterchanges (every 2-4 months or so). Dose nitrate/phosphate occasionally as necessary for the massive amount of macroalgae in the 3 tank system. Flow is a single WP25 in the DT, K3 in the sump. Other than tons of macros, there's my copperband and fancy snowflake pair in the DT, and a platinum clown in the sump. Inverts limited as its a macro tank, mainly DIBS turbo snails. Some corals, mainly softies (leathers/kenya trees/clove polyps/mushrooms/gorgs/GSP) and several goniopora (kept successfully for years).
The majority of the pics are from my mixed SPS/LPS reef tank. 150G display tank, lit by 14 bulb T5 fixture, flow is 2x WP40's. Small carbon reactor, very undersized skimmer, 2 part dosing keep alk/cal steady. Waterchanges every 1-3 months (I tend to get lazy lol). Heater/chiller combo controlled by master Apex keep temp very steady throughout the day. 2 sumps, 55G drum that holds most of the equipment (carbon reactor, chiller, heater, skimmer), 40G second sump as a fuge holds macroalgae. Keep nutrients there, not trying to keep them super low as the LPS like nutrients. Its interesting keeping a longterm balance that's beneficial for both LPS and SPS. My acros aren't too healthy at the moment as I deliberately infested them with AEFW in order to study them (working with Kate Rawlinson to perform experiments/observe their lifecycle). Many different kinds of LPS: hammer (gold, solid green, solid purple, green with purple tips, purple with green tips, bicolor), frogspawn, goniopora (green, lime green, yellow, gold, pink), chalice (gold, mummy eye, crazy fox, hell's eye), pectinia, oulophyllia, leptastrea. SPS include various acros, pocillipora, seriatopora, digi, spongodes, setosa, other montis (my favorite is the real orenji monti

).
My master Apex head unit controls all 3 tanks in my fishroom.
Also have a waterchange station in my utility room. 3 55G drums for RO/DI water, 2 55G containers for new saltwater. 2 pumps have multiple purposes, the freshwater one will either pump water up to the saltwater barrels, or up into the ceiling where I ran tubing 30' vertically over into the fishroom. The saltwater pump either circulates one or the other barrel, pumps water from one to the other and vice versa, or pumps water up into the ceiling and over into my fishroom (on the other side of the house from the utility room of course!). I also ran extension cords with the tubing in the ceiling so I can turn either the freshwater or saltwater pumps on from the fishroom itself.
I'm very into DIY, make a lot of things for myself. Built my stands, done all my plumbing, lots of various acrylic projects like stands, frag racks, top down viewers, vortech screen cover, etc.
Fishroom (where the fan is, is now a 40B):
Waterchange station:
