Peroxide (H2O2) dosing for parasites in reef tank

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  • Jessican

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    It’s been too long since I did it and my outbreak was in the early stage where only one fish was showing symptoms, so it’s hard to say. Basically the “result” that I saw was just that it didn’t progress and nobody died. If your outbreak is farther along, the worst affected fish may still pass, but you should notice that the outbreak doesn’t spread.

    UV isn’t necessary, but it will help. If you aren’t using UV, definitely make sure that you do the overnight dosing, and I’d suggest speeding up the timeline a bit.
     
    I’m trying to follow your accelerated dosing and am doing week 2 of 1ml every 5 gallons every 8 hours. I ended up loosing my clowns in addition to the potter but I think my purple tang is looking better. My white tail bristletooth tang is looking a little bleached out in color so hard to tell if there is anything and my last fish, my blue tang, has been hiding so I can’t see severity. Should I start the overnight dosing now? If so, is there a modified version to doing so as my current Kamoer X1 dosing pump can only do 12x a day so would only have 9x intervals left?
     

    Jessican

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    Yeah, if they’re continuing to decline then I would get the overnight dosing going. If you can only do 9 more doses with your pump then just split the total overnight amount up evenly and I would run those doses at 30 min intervals (so it would be 9 doses over 4.5 hours instead of over 6 hours).
     

    Mr. Fishy Fish

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    Basically the “result” that I saw was just that it didn’t progress and nobody died. If your outbreak is farther along, the worst affected fish may still pass, but you should notice that the outbreak doesn’t spread.
    This is exactly what's happening for me. I lost no fish and velvet didn't progress. Dosing H2O2 (8-hour schedule) + running a 40-watt UV at 150 GPH has worked very well for me so far. It's been about a week, and I've yet to see a second outbreak. I noticed some secondary infections on my naso (second to breakout during the first phase) and lineatus (first to breakout during the first phase) though. Other than them, no one has shown any physical signs after a week of this approach. I don't know why, but the secondary infections seem to be disappearing on their own. Perhaps it's due to the UV + H2O2, or their natural immune systems are dealing with it.
     
    Yeah, if they’re continuing to decline then I would get the overnight dosing going. If you can only do 9 more doses with your pump then just split the total overnight amount up evenly and I would run those doses at 30 min intervals (so it would be 9 doses over 4.5 hours instead of over 6 hours).
    Well looks like my purple is improving but will see on the others. Since it wasn’t clear, is it 1ml every 15 minutes per X gallons or just 1ml period?
     

    Jessican

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    Well looks like my purple is improving but will see on the others. Since it wasn’t clear, is it 1ml every 15 minutes per X gallons or just 1ml period?
    It’s double your normal dose, divided by however many intervals you can dose overnight. What is your regular dose right now?
     
    Okay so 20mL x2 is 40mL divided over 9 doses is 4.4mL every 30 minutes. Yep you got it :)
    Cool I updated my doser. Let me know if there are any tweaks.
     

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    Mgchua

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    @Jessican: I finally got my doser. Did you dose directly into your tank or sump? I was manually dosing directly into the tank but now with the doser I have it going through the sump right at the inlet of my return pump. Thoughts?
     

    Jessican

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    @Jessican: I finally got my doser. Did you dose directly into your tank or sump? I was manually dosing directly into the tank but now with the doser I have it going through the sump right at the inlet of my return pump. Thoughts?
    Either is fine, I originally was dosing into the tank near the gyre, and then later switched to the return chamber of the sump.
     

    Jessican

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    Hey @Jessican
    I think you and @Humblefish were tracking which fish do ok in H2O2 dip.
    I did a single dip of 150 ppm of H2O2 for 30 minutes. No issues with the dip with the following fish: 1 captive bred yellow tang, 1 carpenter wrasse, 1 tailspot blenny, 2 yellow clown gobies.
    Excellent, I'm going to move this post to the peroxide tracking thread so that HF can update the OP. :)
     

    smsreef

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    Either is fine, I originally was dosing into the tank near the gyre, and then later switched to the return chamber of the sump.
    Hi @Jessican
    When dosing with a doser, is it ok to drip from the end of tube (dripping through some air) into the water so the tubing does not later create a siphon?
    Or is there a better way so that the H2O2 does not contact the air at all and goes straight into water.
     

    Jessican

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    Hi @Jessican
    When dosing with a doser, is it ok to drip from the end of tube (dripping through some air) into the water so the tubing does not later create a siphon?
    Or is there a better way so that the H2O2 does not contact the air at all and goes straight into water.
    Yes, I positioned my tubing so that it was just above the water line to avoid the chance of back siphoning. I found that if the tubing was against the glass, the peroxide ran down the glass and into the water with minimal splashing.
     
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