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Showing results for tags 'blue sympodium'.
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My zoa's and Blue Star Polyps have both been receding for the past month or two, and I can't figure out why. In the pictures below you can see the change over time. The Blue Star polyps most notably have been closed up and receding for almost 2 months. The zoas are mostly open, but they have been receding, all be it more slowly, but still noticeably during the same time frame. I have a biocube 29 AIO. I use stock bioballs and carbon cartridge, with filter floss, and chemipure blue for filtration. I do weekly water changes (4g), replace my floss weekly, rinse the cartridge weekly replacing it every other week and rinse the chemipure weekly changing it every 3 months. Lighting hasn't changed, location of the corals hasn't changed. I've adjusted flow amount/direction without any result for them. I don't dose anything. The only significant issue I have had recently was in early July when the fake silicone anemone I had in the tank started breaking down. It was releasing some level of silicate into the water. All of the corals were unhappy. I was able to quickly correct it by adding Phosguard to my filtration for a week along with an extra mid-week water change. All of my LPS recovered within days, but the zoas and BSP have continued to decline. In talking to my LFS he suggested it could be an iodide deficiency. On his advice I dosed Kent Iodide for a week, 5 drops per day per the instructions, but there has been no noticeable change. I've researched both zoas and bsp/gsp and can't find anything definitive to try. The only noteworthy comment is that they like "dirtier" water. I have no idea what that means, and given how well all of LPS is doing, I'd don't want to do anything that would negatively affect them. Looking for any suggestions. Pictures below: Full tank as of now, before and after pics of each coral in question.