Arkayology
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What do you all think? Are these Amphidinium? Something else? They seem to be irritating my zoas, maybe killing my snails. They don't form thick carpets, more of a light dusting. Seem to keep mostly to the sand.
Amphidinium? Something else?
- Thread starter Arkayology
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I am stumped. It is not obvious what these are and also whether the different shapes are the same organism viewed along two different body axis.What do you all think? Are these Amphidinium? Something else? They seem to be irritating my zoas, maybe killing my snails. They don't form thick carpets, more of a light dusting. Seem to keep mostly to the sand.
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Arkayology
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I think the different shapes are due to different orientations. They all are sort of coffee bean shaped. I *think* it is on the glass, rocks, and sand. I'm thinking about getting a UV as well as dosing silica and raising nutrients.
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Arkayology
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Mack's dino group came through for me. I have Prymnesium parvum, which appears to be way worse than dinos. It not only looks like the images i've found online, but it also has similar impacts. It grows in areas without light, seems to be toxic to inverts, and congregates at the surface of the water, though it grows all over. Since this appears to be in the water column, I've ordered a UV. Hopefully I can get this taken care of and get algaes to outcompete this nasty stuff. There isn't much out there on this.
juanzepeda90me
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What did you end up doing ? Im dealing with this now
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Arkayology
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I did some reading on this stuff and it is quite nasty. I found that UV is quite effective, so I bought a UV sand sweeper as well as a 9w green killing machine UV. I am still not sure if it is in the water column AND in the sand/glass, or if it is mostly on the sand. I see a lot of it on the sand, but it does show up in other places. Mine likes light, but not too much. Blackouts won't work as it is photosynthetic AND will eat bacteria/other stuff when there is less light. Dosing bacteria doesn't help. Filter floss in my sump seems to catch a lot, so I am thinking this algae is on all surfaces and in the water column.
I just received the sand sweeper UV and have used it three times now (twice a day). So far, it seems to be effective. I see a lot less on the sand and glass after the three sweeps. Some of my corals are slightly opening, but still not very happy. I think this is going to be a long-term project. I will be updating on how things go, but my hope is that I can get cyanobacteria or hair algae to take over so that I can at least keep corals and snails. I bought a new turbo snail to see if my water is truly toxic and the moment I put it in it started squirming and would not attach to anything. I had to give it to a local so that it doesn't die in my tank. Interestingly, my sand conch, fish, and hermits all seem fine. Most snails and corals are what are impacted most. I may get a more powerful UV if I find that the UV is the best way to deal with this stuff.
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