It's been a while since I updated and I had some interesting things happen so I thought I'd share.
In mid December my family and I went on a 3 week vacation to Hawaii. I had setup a large 100g stock tank with RO/DI water and kalk to top the tank off over the vacation which worked great. We had also hired a local guy from the LFS to check on the tank every other day. Unfortunately about a week or two before we left I noticed certain SPS corals were looking strange, the flesh around polyps was fading or disappearing but the polyps remained fine. I tried to do several small water changes, run carbon and test everything I could but there was no obvious reason for the SPS issue. I let the LFS guy know what was going on but he never found a reason for it either.
When I got back I had found about 3-4 colonies of SPS had died and all of the remaining looked pretty bad except the orange/red monti cap. I removed all the dead corals and frags that looked like they were on their way out. I still don't know what the problem was but it seems to be gone now. All of the corals are almost finished healing and looking normal again.
Here's a picture of the famosa healing. You can see the new growth on the polyp tips where it's much bigger. During the SPS issue all that flesh had disappeared and had algae growing on the dead spots. The flesh is now growing back over those dead spots though.
I was very relieved to see the SPS issue disappearing even though I never found out the reason why it occurred in the first place.
Shortly following the recovery of most of the SPS we had a 6.5 magnitude earthquake off the coast of Eureka which shook things up a bit. A lot of water was sloshed out of the tank but fortunately it's all still standing with no leaks. All the sloshing got water all over the place by the tank though so I immediately disconnected all the power to the tank to prevent and risk of an electrical fire. I righted all the corals that were knocked over and dried all the water that spilled everywhere. The tank must have really been sloshing around because even the T5's were dripping wet. Ultimately anything attached with a good amount of putty stayed in place though so there wasn't too many corals knocked around.
Things are still going well though, everything has been pretty stable and looking for a while, though we did just have another 5.9 earth quake yesterday, it thankfully was much smaller and caused no problems.
Here's a picture of the tank:
Natural disasters are an important part of the Hawaiian reef's diversity, If it weren't for natural disasters the Hawaiian reef would become dominated by a few select species of corals over time. With the disasters such as lava flow, earthquakes and tsunamis there is a chance for greater diversity by knocking the dominating corals back to give the others a chance to grow again. I'd like to think of little tank setbacks as a chance to improve the diversity in my tank as well. New frags are taking the place of some of the SPS colonies that didn't survive the SPS issue. These frags are from a local reefer who gave them to me a few months ago. Now that I finally have room I was able to move them from the frag tank to the display.
We found a place for the sun coral to go aswell!
