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Reef Tank 365
- Nov 1, 2019
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Hey guys a little blurry best I could get in focus.... any ideas? It looks like Ostreopsis to me.
Disappears from the sand at night but stays on the backwall overnight - the sample was taken from the backwall where it stays.It’s hard to tell from the photos, but could also be some amphidinium. Ostreopsis is very sesame seed like shape, while amphi have beaks. See if there are any that move like roombas (amphi). Where were the samples collected from? Sand or rock work. If it’s in the sand, and it stays when lights are off, it’s probably amphi.
Nonetheless, if I’m wrong and it is ostreo, can run UV and up nutrients to battle it. Word of caution though, I eliminated ostreo to get amphi taking over now. They are much harder to eliminate since they don’t enter water column. Best thing I’ve found to combat that is growing diatoms, adding biodiversity and not letting nutrients bottom out.
Thanks - Tank is 5x3x2 so approx 215 Gal plus sump so maybe 240-250 total.Slow. 2-4 tank volumes per hour. This will be slower than the manufacturers recommendation. You will get best results running to and from display tank as well. How big is your tank?
Yes, your flowrate sounds right. Your unit is sized right as we have learned that you need at least about 1 watt of UV per every 3 gallons to be most effective. Again, plumbing to and from DT will help more than you think. This is a pain, but I highly recommend.Also should I continue to remove the Dino’s once the UV is on or just scrub it off every day? Should I also couple this with a blackout or lights off period or just leave lights on? I turned the lights off last night as it was starting to get worse so just until the UV comes I don’t want it going crazy and killing off more corals.
I am also dosing hydrogen peroxide should I continue with that to?
Awesome thanks heaps! Good to know I’m on the right track. I will definitely do from DT to DT as it’s easier to setup initially. Once they go should I run the UV from the sump long term? Also will Dino’s be there forever or will UV kill it all eventually?Yes, your flowrate sounds right. Your unit is sized right as we have learned that you need at least about 1 watt of UV per every 3 gallons to be most effective. Again, plumbing to and from DT will help more than you think. This is a pain, but I highly recommend.
Once the UV is on, you should see very fast results so hopefully daily scrubbing won’t be required. You can do a blackout if you want, but I would not unless the UV is not doing what is expected.
I have no experience with hydrogen peroxide. It seems to be one of the many things that help some tanks but not others. There have been some experienced reefers who swear by it.
If things go like they should, then more importantly, you’ll need to run your tank so they don’t come back. Keep us informed. Good luck.
Most people, I think, end up running from sump long term. It’s a clean setup that way. I still run my UV to and from display as I really hate dinos.
I think they will always be there, at least in very small numbers. They will dominate only if other things cannot. You will want to run your tank with enough nutrients for algae and other dino competitors to grow. So be sure to run with measurable nitrates and phosphates from here on out.
I bet I could find dinos in my display if I tried hard enough. I probably always could. But, certainly they don’t dominate now. Other algaes and (unfortunately) cyano dominate my tank. My cuc takes care of most algae.