Moving from DSB to NP Pellets

Discussion in 'Biological/Natural Filtration and Deep Sand Beds' started by dallasg, 9 Dec 2011.

  1. dallasg

    dallasg Moderator MASA Contributor

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    Hi All!

    i am planning on moving from my DSB to NP pellets only, and just wanted to run my plan of action past MASA and see if i left anything out

    the system is my 3 side viewable
    My 3 Side viewable tank - Marine Aquariums of South Africa

    i am going to add the NP reactor on top of the DSB for 4 weeks then once NO3 and PO4 get to 0 i will then siphon out half the DSB, while dosing special blend
    then a week later remove the rest

    @459b and @RiaanP
     
    Last edited by a moderator: 26 Nov 2015
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  3. Quintus

    Quintus the irish aXeman

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    silly QTS, can't one keep/run both?
     
  4. mariusmeyer

    mariusmeyer

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    Will be watching this process. What is the stocking level like in the tank? Would be interesting to see how it will work with a medium to high load. How many pellets are you planning on starting off with and then the final amount?
     
  5. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    you can, but i dislike dsb's and now that NP pellets are better formulated i will use them
     
  6. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    its a high load, 10 soft corals and 14 fish
    i will use 250ml to start then go as needed
     
  7. Tremayn

    Tremayn

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    think you are on the right track. There was a thread like this not so long ago, but as I remember the DSB just stored nutrients so it made the np pellets like useless then the guy removed the dsb and everything came right
     
  8. Monti

    Monti

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    sorry- I thought you were going zeovit?
     
  9. danimal

    danimal

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    will be following this. been thinking of the np pellet route, i think a DSB only really works if it's really huge - bigger than is practical in our setups
     
  10. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    I am, this is for a tank i maintain and just wanted to make sure i dont miss anything.
    Experience beats theory
     
  11. irie ivan

    irie ivan MASA Contributor

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    Just take care when siphoning out the sand. I would recommend that returns are switched off for quite some time after sand has been removed for the skimmer to remove stuff and re-oxygentae.

    Personally I would not advocate half removal of the dsb and then the other half, rather take it off line and remove all at once.
     
  12. 459b

    459b Moderator MASA Contributor

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    Interesting - i was planning on doing the same in the not too distant future.

    I agree with Ivan, i wouldnt remove half and then half. Removing half will make anaerobic areas aerobic so youll get die off. Youll also release alot of detritus when distrubing the DSB.
    Id rather run the reactor for a while, then remove the DSB all at once.
     
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  13. RiaanP

    RiaanP Moderator

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    how you siphon out half the sand, From the top, top layer? Or will you split the DSB in halve with vertical glass pane and siphon out on side, all the way to the bottom?

    Siphon out top layer and you have the anaerobic bacteria suddenly exposed to different environment. and boom.

    vertical split, and you need to ensure your divider stay in place.
     
  14. RiaanP

    RiaanP Moderator

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    great minds think alike

    but then again

    fools never differ
     
  15. Adee

    Adee

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    I think DSB's still rule :tt2:
     
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  16. Reefhead

    Reefhead

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    Dude how big is the tank cause 250ml of pellets sounds way too little?
    Rather try start with the right amount from day one
    Also would it not be better to maybe run the pellets in a small seprate tank for a few weeks to get the bacteria going, then in the same day take out the DSB and add the reactor when its ready?
     
  17. ziyaadb

    ziyaadb

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    as above remove the entire dsb at once
     
  18. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    i am going to start will 250ml for 350L until i notice values coming down and stabilising, then i will do as suggested by @irie ivan and @459b
    then add more pelletes/bio-cubes :)

    @Adee coz you have a giant one :)
     
    Last edited by a moderator: 26 Nov 2015
  19. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    okay, so this thursday i am going to remove the dsb completely, adding the following to ease the transition
    ROWAPhos
    Purigen
    Seachem Matrix
    Seachem De nitrate
    500g maxi-zorb carbon

    then will use the new seachem AV range , will post pics as it happens
     
  20. mookz

    mookz

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    Start with 100ml every couple of days, if you put in 350ml, you will experience a bacteria bloom in 3- 4 Days.
     
  21. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    thanks, but i am not using NP pellets anymore, using seachem range
     
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