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Thread: 180g Show Tank

  1. #31

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    Tanks is doing well. No livestock losses since last update. Latest Triton results recieved today. Details can be seen on my website if you want to see the details: http://davidgrigor.weebly.com/update...results-are-in

    Fast approaching on the 5 year anniversary of going skimmerless ( Jan 2012 )



  2. #32
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    Nice... maybe Neptune can learn from this

  3. #33

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    Jan 2012
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    MN, USA
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    Passed the 5 year mark in January of Algae Turf Scrubber as main filtration. No skimmer. Just hit the 2 year mark this March of Near Zero water change. Only exports is just 1 cup of carbon weekly, algae harvest, siphon substrate into a filter sock, and a little bit of filter floss. No GFO needed, Algae scrubber keeps phosphates and nitrates at near undetectable. Occasionally phosphates will reach above .08ppm when that happens can usually get it down by slightly reducing feeding or will dose KN03 additive nightly to boost nitrate to around .5ppm to get the phosphates back down. Otherwise nitrates are undetectable using Salifert in high resolution mode.

    Full Tank shot from Today:


  4. #34

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    Dosing KN03 ( Potassium Nitrate )

    Been dosing Potassium Nitrate since January. While only 3 months, I'm ready to share my experiences thus far. I've been pleasantly surprised and have exceeded all expectations to this point.

    As a Teaser here is the latest tank shot 3/26/2017:





    Background:


    In the past, Nitrates always read non-detectable using Salifert Test kit in high resolution mode. Phosphates will normally hover around .06-.08ppm. When phosphates creep up above .08ppm , I normally would add 2 tablespoons of GFO mixed together with my weekly 1 cup of Rox .8 carbon and packed tightly using filter floss. This would bring it back down. I can get it a little further without GFO into the .02 ppm range by tweaking the amount of food. I'm a heavy feeder so when I say reduce food the fish are still well fed.

    Since nitrates have always shown as non-detectable, I decided to give KNO3 dosing a try and see if can get phosphates lower without having the adjust feeding schedules or occasional use of GFO.

    When running a ATS and your nitrates are not zero then you may need to make adjustments to your scrubber lighting or flow. If that doesn't resolve then your feeding too much or your ATS is just not sized well enough for your system.

    Dosages:

    I purchase the Spectracide Stump remover for my initial testing and runs about $7. ​You can buy in bulk for substantial cost savings and I suspect it is higher grade for long term use. I picked up 10lb bag of 99.8% pure from DudaDiesel​. 10lb bag and only use 1/2 cup per gallon of solution this will probably last me a lifetime so I do plan to share with my local club members.

    Mix 1/2 cup of KN03 ( Potassium Nitrate ) with 1 Gallon of RO/DI water.

    For my system, 60mil of the solution will raise Nitrate to .2 - .5ppm range for my 180g system.

    By the end of the ATS ( Algae Turf Scrubber ) light cycle. Nitrates will be back to undetectable levels and Phosphate levels tested using Hanna Checker ULR Phosphorus Checker ( Model HI736) will read 0-1ppb ( < .01ppm ).

    Observations:


    Since running ATS for nearly 5 years, coraline algae rarely grows on rocks and never on the glass. Within the first 2 weeks coraline algae was quite noticable on both the rocks and starting to form on the glass.

    Coral coloration and expansion. No noticable difference. Never had any complaints on coral coloration prior to dosing and have not seen any noticable difference or pastel colors. I highly suspect corals are still getting some nitrate/phosphate during the day from feeding the tank. When the main tank lights are out and the ATS running it's likely removing all the excess. If I were not feeding daily I might expect to see negative coral reaction.

    I do still get the normal diatoms on the glass and throughout the week some diatoms on the substrate. After weekly substrate siphoning its nice and white again. I'm hoping this will lessen overtime.

    I haven't noticed an increase in the weekly Algae Harvest, it seems to be about the same amount and consistancy. However, the color of the algae is a much darker green.

    At this time it is still a manual dosage of 60mil per day with an occasional skip if I haven't feed as much as normal or just simply forget to. I may automate with dosing pump at some point in future but not until I'm fully comfortable with the results.

  5. #35
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    Congrats on the 5 year mark, and interesting to see your N dosing results. You can get it also from places like AquariumFertilizer.com

  6. #36

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    Quote Originally Posted by FrozenReef View Post
    By the end of the ATS ( Algae Turf Scrubber ) light cycle. Nitrates will be back to undetectable levels and Phosphate levels tested using Hanna Checker ULR Phosphorus Checker ( Model HI736) will read 0-1ppb ( < .01ppm ).


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