Would you say the Coral Reefs are part of a balanced system? If so then what is causing their demise?
I think people forget reef building coral records go back to the triassic they've survived major extinction events before. At one point the ocean cooled 6 degrees and light was blocked by ash clouds.
www.nature.com
Well as the great barrier reef is closer to me than you are
it is pretty obvious that they are being killled by excess runoff of fertiliser used to grow bananas, as well as extreme temperatures over the last few years due to climate change.
Hence the reason everything in my tank is and will be quarantined first. Including the new live rock and am planning on purchasing. It will undergo at least 72 days by itself with circulation, lights, and a heater.
I'm sorry it really is sad to lose fish especially long term ones.
If you aren't using live rock, what is your plan to provide the micro fauna?
ROFL API has been pure garbage in tests for a very very long time.
Graham, could you follow up with this. Don't just leave us hanging.
Why have you come to this conclusion?
Roughly speaking what is your threshold for high risk? How would you determine that?
I would lean more toward pollution.
I don't even guess I just assume all of my live rock has majano or aptasia. I spend the first 2 weeks to month looking for it. I have found that Aptasia X works really well to deal with the aptasia. You just have to be diligent. For me it usually isn't an issue to find the aptasia because even to this day I love looking in all of the cracks and crevices for kewl stuff thata comes in on my rock.
My oldest son is still sad about it after 3 years and still talks about them when we see them at a store or on tv. Also taught me a little more about patience, and a reminder about asymptomatic carriers. Solidifying my stance on quarantining everything when talking about the financial investment and emotional attachment of animals in my care. As I stated before, I am planning on using live rock, just that it is quarantined, lighted, circulated, and heated for at least 3 to 4 months before introduction. Unwanted pest will be removed, destructive crabs, shrimp, worms, and aiptasia/majanos. I use F-aiptasia (joes juice and aiptasia x have failed me in the past). In addition, I do have 20 lbs of fiji rock in my 29g that may be moved over. It has uncounted numbers of generations of bristleworms (havent found them to be a pest in the 2 decades of saltwater Ive been around), amphipods and copepods, asterina starfish (havent done any damage to any of the corals Ive kept in the tank), and even some random algaes (halimadea pops up from time to time as well as neomersis). It has bubble algae (but will probably remove it over time) which has never been a big problem either. I view all these algae as beneficial and adds diversity and some measure of beauty as long as kept in check. The only algaes Ive ever had issues with is hair algae (obviously) and caleurpa which got ot of control for awhile in my 125 display back in the mid 2000s.I'm sorry it really is sad to lose fish especially long term ones.
If you aren't using live rock, what is your plan to provide the micro fauna?
Looks great for my smaller tank and or to help out with quarantine live rock tank and such. Thanks for sharing! May be a little cost prohibitive on my 525 at the stocking density I'd need for some of the fauna.
Basically, it is a combination of what I've read here, plus I went back and re-read the book written by Paul B.Graham, could you follow up with this. Don't just leave us hanging.
What caused you to change your mind? Was it something said here, or did something else do it?
Why have you come to this conclusion?
Roughly speaking what is your threshold for high risk? How would you determine that?
I think people forget reef building coral records go back to the triassic they've survived major extinction events before. At one point the ocean cooled 6 degrees and light was blocked by ash clouds.
Evolutionary Traits that Enable Scleractinian Corals to Survive Mass Extinction Events - Scientific Reports
Scleractinian “stony” corals are major habitat engineers, whose skeletons form the framework for the highly diverse, yet increasingly threatened, coral reef ecosystem. Fossil coral skeletons also present a rich record that enables paleontological analysis of coral origins, tracing them back to...
I think the ironic part is coral are much better prepared to survive the Anthropocene extinction than us.
Jay, I just have to ask the question of how much turn over of livestock does your aquarium have? It seems that you always have fish in quarantine to add to displays otherwise you would be out of a job pretty soon. I would think that this would tend to bias your opinion on the success of others that do not have the constant turn over rate that many public aquariums seem to have. I am sure the scale of a facility has an impact on thinking about husbandry practices that most scale down from your perspective. Just curious since my experience is limited to various independent systems in offices and homes so turn over and disease was very little once the biome of the tank was established.
Fossil records disagree the current theory on the end permian mass extinction is a large number of volcano eruptions in what is now siberia causing a mass outpouring of lava that quickly warmed the oceans, much faster than current trends. End triassic was likely slower but it was mass acidification and warming very similar to whats happening today.
Hi, I’m not sure I quite understand your question. I’ve evaluated our longevity / mortality rate for about 30 years. It runs about 12 to 15% annually. Our reproduction rate varies, but offsets much of that. Since many smaller fish have natural lifespans of less than ten years, I think this is very low with old age factored in. We acquired almost no new fish in 2020 and 2021. With growth of existing fish, and cichlid, shark and ray reproduction, we actually had to surplus fish to other aquariums as many exhibits were getting crowded.
How would you measure ocean pollution increase in the last 50 years and incorporate that into your model.Fossil records disagree the current theory on the end permian mass extinction is a large number of volcano eruptions in what is now siberia causing a mass outpouring of lava that quickly warmed the oceans, much faster than current trends. End triassic was likely slower but it was mass acidification and warming very similar to whats happening today.
I disagree but nobody knows for sure. There's some evidence that they will do exactly what they did after every other extinction event. Explode in diversity and population, the graph I attached shows estimated marine extinctions for different time periods. Every extinction event being followed by a recovery.
Reef in recovery window after decade of disturbances | AIMS
After a year’s reprieve, with no major pressures from heat stress or cyclones, widespread recovery on the GBR is underway.www.aims.gov.au
The blue graph shows the apparent percentage (not the absolute number) of marine animal genera becoming extinct during any given time interval. It does not represent all marine species, just those that are readily fossilized.
%
Millions of years
I sidetracked the thread sharing my opinions on that. This has nothing to do with QT. Its not my model, I shared it because it illustrates how marine species rebound from mass extinction events. Just my opinion anyway we can agree to disagree, my bad for side tracking.
