Thanks for re-posting this. If your hypothesis is the correct one, carbon like rox 0.8 isn’t likely to cause HLLE; if the other researcher’s is correct, then all activated carbon would cause HLLE … which is not what we observe in our aquariums. Yes?Carbon has been proven to cause HLLE in a variety of fish (In two studies). My hypothesis was it is the dust, but the other researcher has a hypothesis that it involves removal of organics that had been sequestering heavy metals, making them more toxic to the fish. Either way - the connection was proven. Here is an article I posted here that summarizes it:
Head and Lateral Line Erosion (HLLE)
This article discusses studies performed regarding head and lateral line erosion in captive fishes. Specifically, carbon use and nutrition as they relate to this syndrome.www.reef2reef.com
Jay
I was bouncing back and forth between this post and another one at the time — other guy’s nutrients were low, yours are fine/approaching the higher side. I must slow down! Water exchange for the nem soup is a good approach. How are things looking today?Nice on the water changesYes, your nutrients are low so I would pull GFO out (removes phosphates). If when you say ‘chemi-clear’ you mean ‘chemipure’, then yes, remove that too, because that will also remove phosphates. If you have regular activated carbon, that would be a better choice.
You don't need GFO. You will 0 your phosphate in a new tank and your next thread will be what is this brown snotty stuff all over my sand and rocks killing my coral.
I found pelleted carbon caused less HLLE and it developed very slowly. If heavy metals were the key, pelleted carbon would still be an issue. Thus I’m sticking with the dust idea. Other points: soft carbon used in a tumbling reactor causes the worst HLLE. Reef tanks see less HLLE because filter feeders and protein skimmers pull POC, including carbon dust. A researcher found carbon dust one the lateral line of fish under an electron microscope but he never published.
The corral still not opening but it barely opened I actually moved it lower hoping that would help
My corral still not opening but I removed the FGO and chemi-pure I'm getting mixed information should I keep the GFO in or should I take it out as of now its all out
Your success is not likely to hinge on whether or not you are running GFO. I wouldn’t run it on mine, for a variety of reasons, the biggest of which is that it strips out all the phosphate that I need. In your case, the issue is likely the nem death; but to the GFO question, just keep testing your phosphate … if it continues climbing, there are several things you can do, including putting back in a little GFO … but at this point, you’re already running ChemiPure Blue, which includes minor phosphate removal materials and activated carbon, and your tank is still baking and the biology is still building the food chains and bacterial balance to support a stable biome, so it will take some time for the tank to mature enough to support healthy corals. Regular water changes and patience may be the best approach for now
There was alge growing alove the tank before I add that FGO granted my snails took care of most of it but there's still some in the sand bad I was adding phyto feats every day to the tank
Ok I took the GFO out as well as the chemi-pure, should I add the chemi-pure back? Or just do a 20% water change and let it do its thing? My room mate it telling me to do nothing and let the tank do its thing? Thank you for all your help and informationYour success is not likely to hinge on whether or not you are running GFO. I wouldn’t run it on mine, for a variety of reasons, the biggest of which is that it strips out all the phosphate that I need. In your case, the issue is likely the nem death; but to the GFO question, just keep testing your phosphate … if it continues climbing, there are several things you can do, including putting back in a little GFO … but at this point, you’re already running ChemiPure Blue, which includes minor phosphate removal materials and activated carbon, and your tank is still baking and the biology is still building the food chains and bacterial balance to support a stable biome, so it will take some time for the tank to mature enough to support healthy corals. Regular water changes and patience may be the best approach for now
With a nem soup, I would do water changes and run GAC (or chemipure if you don’t have GAC). And then I would do nothing and let it bake.
