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Fishless Cycle

Home Forums My Aquarium Fishless Cycle

This topic contains 0 replies, has 1 voice, and was last updated by  jaykaybee 6 years, 2 months ago.

Viewing 15 posts - 1 through 15 (of 32 total)
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  • #302327

    jaykaybee
    Participant

    Just started my first fishless cycle 5 days ago. Have a 165l tank, estimate that I have about 150l of water in it. To start off dosed 8ml of ammonia. Seeded with silk plant, decorative stone and some bio balls, which were all left in my old tank for about 4  to 6 weeks. Have turned the heater up to 29c. After 1st day ammonia was 5 nitrite was .25. Day 2 ammonia was 4 nitrite was .5. Day 3 ammonia still 4 nitrite 1. no change day 4 or today (day 5). Noticed today that there is a translucent film developing on the airline and on the plastic top part of the heater. Assume that this is normal bacteria build up, but if someone could confirm this, I would appreciate and any other comments would also be cool.

    #348636

    Graham Ramsay
    Participant

    I’ve never matured a tank that way so can’t comment on that but the white film is normal in new set ups.

    #348643

    mikev
    Participant

    Well… this is not fishless cycle, this is seeding from another tank (bacteria transmitted from another tank), so this is pretty much what most people with many tanks do!
    (You can seed with a sponge — the most usual technique, or media in any form, or with some gravel, or with some fine leaved plants, or even with a piece of driftwood…I did the latter yesterday, after running out of filters with all the new fish :( …worked fine. ).
    And the numbers looks strange to me. Nitrite production on day 1 indicates that seeding was successful, but the bacteria responsible for the ammonia->nitrite conversion is normally very fast growing, so ammonia typically will be fully gone within a couple of days of nitrite production detection. That this is not happening indicates a problem… lack of buffering or lack of oxygen are two possible explanations.

    #348644

    jaykaybee
    Participant

    oh dear, doesn’t sound ideal. today’s readings were the same too! also did ph reading today which is 8 (same as my old tank). turned up the air to full, hopefully if it is the lack of oxygen this will help. does the fact that my ph is stable eliminate a buffering problem do you think?

    #348645

    mikev
    Participant

    Simply check kH, tap and tank, and you will know.

    #348660

    jaykaybee
    Participant

    update:

     day 5, 6 and 7 was no change.

     day 8 ammonia 4, nitrite 2 :?. decided also to check for nitrate, which read as 10.

    #348671

    jaykaybee
    Participant

    day 9 – no change -_-

    #348693

    jaykaybee
    Participant

    day 10 – no change

    #348695

    Matt
    Keymaster

    Are you adding anything to feed the bacteria now the cycle has started?

    #348697

    jaykaybee
    Participant

    no, don’t  i only add more ammonia, when the existing ammonia drops?

    #348699

    Rüdiger
    Participant

    Sorry guys, I might be missing the point here completely. But seeing the parameters I would ask as of day 5 the latest: “how do you filter?”
    I.e. filter type, capacity and filter media?
    Surely a nitrogen cycle in an aquarium will only work anywhere close to predictable with a propperly dimensioned biological filter???
    That’s at least my experience.
    Regards
    R.

    #348700

    jaykaybee
    Participant

    wet and dry trickle filter with wool carbon and bio balls. filter capacity is 1000 lhr

    #348704

    Eyrie
    Participant

    @jaykaybee said:
    no, don’t  i only add more ammonia, when the existing ammonia drops?

     

    Correct – you only need to top back up to a reading of 5ppm.  I’m surprised though that there hasn’t been any movement following the initial seeding however, and even without that the natural colonisation by atmospheric bacteria should be underway.

     

    Are you still reading 4ppm for ammonia and 2ppm for nitrIte? 

    #348705

    jaykaybee
    Participant

    I was, but have scince been advised to do a 25% water change as I worked out that I originally overdosed. I have done this and my readings are now as follows: Ammo – 2, trites – 2, trates – 10.

    #348711

    jaykaybee
    Participant

    Day 11 – ammo 2, trites 2. Added real plants, java fern, java grass and a baby wendtii.

    Day 12 – ammo 2, trites 2, trates 10.

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