Hi, I’m new to reef tank and I also DIY a second hand tank. Initial I wanted to continue to keep fresh water fish decided to redo everything including replace the heavy duty aluminium stand to heavy duty custom make cabinet , compartment t the sump. Family and friend later encourage me to try reef tank , so it end up a massive project, 3 moth and I still constructing base on my many yrs of fresh water keeping experience.
1) main tank a L177 crystal tank approx 6ft x 2.3 x 2.
2) sump tank 150 x 48 x 42 cm
3) external under gravel filtration tank 24 x 60 x 27 inch
didn’t take much pic , will visit the piping shop , hope is still around since the tread is so many years back.