Algae Refugium finally done

[mark]

Seemed to keep falling behind other things around the house but finished a 20G refugium upstream of sump fed by 1 of 2 drains coming from display.

Only up an hour but all I see wrong is still needs a bubble tower and probably not a big deal, but max flow <300gph since using a 1" bulkhead (here). Now just to clean the coralline out of the sump and tidy up.

[Snappy]

Nicely done Mark.