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Timfish last won the day on January 26

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About Timfish

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    140 gal.
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  1. If your sailfin is pretty young the distribution of spots is probably the best way to distinguish between the two species. if it has spots just on the face and not past the first black band or on it's belly it's likely Zebrasome veliferum. Zebrasoma desjardinii should have spots going back to it pectral fins as well as it's throat and belly.
  2. Here's some links to research papers. Low phosphorus and high nitrogen is not a good combination for corals. When considering the nitrogen demands of corals all types of nitrogen also need to be taken into account, the dissolve organic nitrogen (DON ) forms of dinitrogen, amino acids and urea and the inorganic forms (DIN) of ammonia/ammonium, nitrites and nitrates. It shouldn't be overlooked that nitrates are corals least favorite form of N. We also need to expect species specific responses to imbalances in the C:N:P ratios. To start with here's a video done by some researchers warning against high nitrogen to low phosphate ratios. https://ars.els-cdn.com/content/image/1-s2.0-S0966842X1500075X-mmc1.mp4 Context dependant of nutrient loading on the coral-algae mutualisim (nitrate can push it to parasitism on the part of the algae) https://esajournals.onlinelibrary.wiley.com/doi/abs/10.1890/13-1407.1 Nutrient enrichment can increase the susceptibility of reef corals to bleaching: http://www.indiaenvironmentportal.org.in/files/file/Nutrient%20enrichment.pdf Ultrastructural Biomarkers in Symbiotic Algae Reflect the Availability of Dissolved Inorganic Nutrients and Particulate Food to the Reef Coral Holobiont: https://www.frontiersin.org/articles/10.3389/fmars.2015.00103/full Phosphate deficiency promotes coral bleaching and is reflected by the ultrastructure of symbiotic dinoflagellates (The researchers identified a minimum threashold level of .03 mg/l PO4 at a redfield ratio of 22:1 N:P to prevent damage to the coral) https://www.sciencedirect.com/science/article/pii/S0025326X17301601?via%3Dihub Effects of phosphate on growth and skeletal density in the scleractinian coral Acropora muricata: A controlled experimental approach https://www.sciencedirect.com/science/article/pii/S0022098111004588 High phosphate uptake requirements of the scleractinian coral Stylophora pistillata http://jeb.biologists.org/content/214/16/2749.full Nitrogen Cycling in Corals; the key to understandking holobiont fucntioaning? https://www.sciencedirect.com/science/article/pii/S0966842X1500075X#fig00 Uptake of free dissolved amino acids by the scleractinian coral Stylophora pistillata https://jeb.biologists.org/content/211/6/860.long Urea uptake by the scleractinian coral Stylophora pistillata https://www.sciencedirect.com/science/article/pii/S0022098105005538 Elevated ammonium delays the impairment of the coral-dinoflagellate symbiosis during labile carbon pollution (carbon dosing) https://www.sciencedirect.com/science/article/pii/S0166445X19307192 Nitrate increases zooxanthellae population density and reduces skeletogenesis in corals https://link.springer.com/article/10.1007/BF00942117 Your experiences seem too have mirrored my own. I have two threads dealing with nuisance algae where PO4 increased as nuisance algae disappeared. Here's the links: http://www.austinreefclub.com/topic/34556-hair-algae-a-case-study/?tab=comments#comment-275433 http://www.austinreefclub.com/topic/39043-hair-algae-a-second-case-study/?tab=comments#comment-325744 Here's fig 3 from Shantz and Burkepile's paper linked above. It should be noted their paper reviewed the data from 208 experiements from 55 or 56 research papers.
  3. I'm definitely looking into it. SOmething like 90% - 95% of the microbiome cannot be cultured so changing the microbiome will have to be done by changing the corals, sponges and algae as well as the maintenance techniques and practices as these are all manipulating the different components of the microbiome and pushing it towards heterotrophic, oxygen consuming and potentially pathogenic species or pushing it towards autotrophic and oxygen conserving species. Rohwer's "Coral Reefs in the Microbial Seas" is a good inttroduction to these processes. Here's some more links identifying some of the specifics: Aura-biomes are present in the water layer above coral reef benthic macro-organisms https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5562181/ Influence of coral and algal exudates on microbially mediated reef metabolism https://peerj.com/articles/108/?utm_source=TrendMD&utm_campaign=PeerJ_TrendMD_0&utm_medium=TrendMD Effects of Coral Reef Benthic Primary Producers on Dissolved Organic Carbon and Microbial Activity https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0027973 Biological oxygen demand optode analysis of coral reef-associated microbial communities exposed to algal exudates https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3719127/ Global microbialization of coral reefs https://www.nature.com/articles/nmicrobiol201642 Visualization of oxygen distribution patterns caused by coral and algae https://peerj.com/articles/106/ Macroalgae decrease growth and alter microbial community structure of the reef-building coral, Porites astreoides https://www.ncbi.nlm.nih.gov/pubmed/22957055 Biophysical and physiological processes causing oxygen loss from coral reefs https://elifesciences.org/articles/49114.pdf Excess labile carbon promotes the expression of virulence factors in coral reef bacterioplankton https://www.ncbi.nlm.nih.gov/pubmed/28895945 Differential recycling of coral and algal dissolved organic matter via the sponge loop https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2435.12758 Coral and macroalgal exudates vary in neutral sugar composition and differentially enrich reef bacterioplankton lineages https://www.ncbi.nlm.nih.gov/pubmed/23303369 Dealing with "snot" algae like BBMarlin describes, was one of the motivators for developing the use of plastic straws then stainless steel straws to remove unwanted stuff from around corals. For years when I get what I consider excessive algae I'll start siphoning it out. There have been a couple of instances with clients where 3-4 times a week I was siphoning out snot algae to keep it from affecting the tank. Fortunately it's rare to need to do so.
  4. Fantastic idea Ian! This would also be a great resource for local aquarists who want to raise some of the other fish that are breeding in our systems.
  5. I've always enjoyed the color and pattern contrast you can get with a group of Rock/Flower Anemones.
  6. What are the numbers of fish you were thinking of fully stocked? Your list seems pretty light for a 180 and fish poop is the best source of nitrogen and phosphorus for corals. Don't beat yourself up over your fish loss. Stress will affect each fish differently and Anthias can be tricky even for the hardiest species. I've also seen over the last several years quality go down. Anecdotally from my suppliers world wide there's a growing market at the same time Fiji and Indonesia have restricted exports. There are fish I that have completly disappeared from my suppliers lists. Many species are hugely more expensive. And sizes have shrunk, what used to be a small is now a medium. (Here's a fig. 3 from a paper by SHantz, et al, that reviewed the data from something like 208 experiments from over 55 research papers showing the benefits of fish poop)
  7. Timfish

    Blue Linkia

    I will not get Fromias any more. About 8 -10 years ago I ordered a dozen and placed them in a bunch of different ssytems. They all died roughly six months later with in a few weeks of each other. Every couple years since this linkia is still doing ok I break down and try another one in one of my systems but so far haven't had any luck. I haven't tried another blue linkia to the system this one is in, don't want to jinx this one. 😕
  8. Timfish

    Too close

    Got a little too close and personal with one of my frogspawn. 😐
  9. Timfish

    Blue Linkia

    I suspect a lot of inverts we keep should live decades if we can provide the right diet. I feel like I've accomplished something keeping this linkia for so long but I also worry that it hasn't grown much and I really have no clue what it actually feeds on. It's rarely out visible like this so it's more likely feeding on something in the cryptic areas than the algae in the lighted areas.
  10. Timfish

    Blue Linkia

    12+ year old blue Linkia ( Linkia laevigata). Not sure how long they're supposed to live but this one has lived a lot longer than most I've had.
  11. There was probably something wrong with it when you got it. I'd guess this happens about 5% - 10% of the rock/flower anemones I've gotten (and it seems to have gotten worse over the years). Worst was a shipment or 20 I got a couple years ago that had a couple already dead and several more die within days and most of the rest never would attach. Only a couple were still alive a year later.
  12. While the majority of my systems didn't have any noticable changes when IO switched their manufactiring process, several did start getting new cyano growth at the same time. Kim's tank was the best example though. She had some problems middle of last year and had some bleaching and some dieoff and consequently lots of cyano. I started working with her and we had gotten it cleared for probably two months up when I grabbed a bucket of IO when she ran out of Read Sea. Within a few days of the first water change with IO a fair amount of cyano popped up and got worse week to week until we switched back to Red Sea after 3 weeks and we saw an immediate slow down and disappearance of cyano in just a couple more weeks.
  13. This royal urchin didn't pay attention to how high it was climbing to release it's eggs into the water. https://youtu.be/FgSEgkCdm2g
  14. Something I've learned is things are always changing even if we can't necessarily quantify them easily. I would point out coral growth and fish growth are a pretty significant changes to how nitrogen and phosphorus is being cycled in a reef system. We know fish poop is pretty critical for corals. Increasing fish biomass or increasing amount being feed to the fish or limiting the amount of coral being kept in a system is likely critical for long term survival. Not increasing the amount of fish poop or using alternate methods may create chronic conditions that can go undetected for long periods of time but sooner or later will cause problems. Here's a figure from a paper looking at nutrient loading on corals
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