Yesterday was the display refugium swap. My friend Jim came over to help with his video cameras in hand to cover it for a future LA Fish Guy episode... The swap went extremely smooth. I guess it pays to be well prepared. I had everything on hand for the swap and most of the PVC precut and ready to go in an effort to reduce downtime of the display fuge.
This tank was a clear back so I first painted the back outside of the tank with black Plastidip. With this tank, I decided to stick with a stand pipe drain and return line as opposed to an overflow. I didn't want to sacrafice bottom space for the overflow and figured I could build my rock work around the standpipes. The stand pipes were painted black with Krylon Fusion.
Fortunately this swap didn't require shutting down anything on the main tank except for the skimmer. I had to add 50 or so gallons to the main tank/sump in order to fill the display fuge so I had to temporarily shut the skimmer off to prevent it from overflowing.. I opted not to reuse any of the water I siphoned out of the original display fuge so adding new water to the system and allowing it to mix with the tank water was the best and easiest course of action. Once the new water was transferred to the main tank, we started the tear down. First close off the return valve to stop the flow then siphon some water into to buckets and remove the mangroves soft coral and some rock, drain some more water, remove more rocks, drain more water find any remaining corals on the bottom then scoop out the live sand. Tear down and removal of the original tank took about 40 minutes.
The whole swap took just few hours. Once the new tank was in, I put the original live sand in the new tank and added two more bags of live sand. The we filled it. It took another hour or so for the water to clean enough to put the original live rock back in. Since this tank is twice as tall, I snagged a piece of live rock from my main display as well as a couple pieces from my sump to create the cave and live rock structure off one of the corners of the display fuge. After another hour or so, it was sunset in the tank and clear enough to put the corals, pipe fish, bangai cardinal and scooter blenny in. Since it was getting darker in the tank, I placed many of the corals in temporary locations on the bottom for the night. This morning when the lights were back on I spent more time arranging the corals in what should be their permanent locations.
I took some pictures a little bit ago after letting the water clear after arranging the soft corals. All of the corals in here are from the original display fuge and were originally offspring from larger colonies in my main display. As such, I'd expect them to be fully open within a day or two but should be looking much better later today.
I also came up with a nifty clip solution for suspending my mangroves. My goal is for them to have the roots grown down the sand creating little mangrove caves and structures for fish to hide in. They will also serve as good places for sea horses to hang onto which will be coming in the coming weeks. I do like the look that the roots provide suspended off the bottom. It creates a fairly unique feel to the display. I need to get a lawnmower blenny which I will pick up today. In the coming weeks I will also add a couple more bangais as well as more pipe fish.
Here are a few pictures. I will take some more later today once the corals have settled in to their new home.
First the before.
Now the after shots. Lights are still ramping up so it could be brighter. More pictures will follow later today.
Really hard to see the cave.