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Thread: How to introduce cardinal in school into the tank

  1. #1
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    How to introduce cardinal in school into the tank

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    Need to get your experience advice on how to introduce cardinal into a 2 months fully cycle 3' tank.

    How many to buy first for a school ? < 20 or < 50 ?
    How to quarantine them safely with minimum stress ? Tank size ? water from cycle tank ? anything else ? Air stone pump into the water ? temperature ?
    How long need to quarantine ?
    How to introduce into the cycle tank ? How many in one go ?
    What to do after that ? needs to monitor ?

    Thanks in advance !

  2. #2
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    If it's a cycled tank, you shouldn't have any problem intro-ing them. Do practise proper acclamatization procedure to minimise stress.
    I've ever put in 100 pcs Jumbo sized cardinals into my 4X2X2 a month old tank. No problems. I must remind you that the tank conditins should be stabile to take on such a load.
    Cheers!!

    Sherwin Choo
    [email protected]

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    Thanks for sharing .

    How to really tell my tank water is really "Lao chui" and season. I have cycled it for 1.5 months , but casualty still happened. At 2 mths , I introduced 7 rummy nose, and similar casualty and left with one poor fellow.

    I find Rasbora Esperi is nice also and hardy.

    The new breed Zebra Danio (long fin) had the same fate as the rummy nose and Cardinal. 4 of 6 die.

    Can you share the detail steps on acclimatize the Cardinal ?

    The steps I carried out for the Cardinal (straight from LFS) :
    - acclimatized for 1 hr
    - let tank water ran into the bag and wait for another 30mins.
    - pour the fishes in the net in small batches , max 5.
    - temperature 26-27 deg c
    ==> white spot appeared on Cardinals 2 days later
    ==> 5 days later all 20 dies

    Practice carried out now (after the lesson learnt above) :
    - acclimatized for 1 hr in the pail with plants and tank water
    - mixed the pail water into the bag and wait for 30 mins more
    - pour the fishes into pail (not the water)
    - quarantine at least 3 days
    - put into a bag acclimatized at tank later on 1 hr
    - pour in tank water into bag and wait for 30mins more
    - pour the fish into tank (not the water)

    -

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    if most fish you put in quickly die, you either are buying very poor quality fish, or your water is screwed. Please try to check your water quality (esp ammonia and nitrite) before subjecting more new fish to it. Thanks.

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    Budak, I believed my tank water was ok. Ammonia and nitrite always shows zero, nitrate 20-40ppm. As I normally check it once a week, 2-3 days after water changed.

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    repeat

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    then the problem's probably something else... that your first batch quickly developed ich points to the source of the fish rather than the tank.... one thing though, i would think acclimatisation for temp (floating the bag for 1/2 hour before netting the fish in) should be ok for most cases (the 2nd procedure described sounds rather traumatic for the poor fish). Other possible causes: how about pH shock?

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    PH shock ?

    My tank water had the PH hovering at 6.0 all the time.

    Can suggest the proper way to acclimatize fish to the tank water PH ?

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    Neon from what you described, i fear you misunderstood what is meant by cycling. Just to confirm, what did you exactly do to the water in that 1.5 months? I hope you did not just leave it lying there with occasional partial changes and consider your tank cycled, because cycling the tank usually involves putting a few hardy fishes to start the nitrogen cycle, which you did not mention and i assume you did not do.
    ============================
    NEON TETRAS WOULD BE PERFECT IF NOT FOR THE ^#&*!()%@^&@%# NEON TETRA DISEASE!!

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    I understood what "cycle the tank" meant (ensure ammonia , nitrite are 0 ppm , and with tolerable 10-50ppm of nitrate). My tank nitrate is around 40ppm.

    I also read up from books , forum, many web sites on new cycled tank. Basically, I carried out 20-30% water changed, anti-chloride treated, and added TMG 20ml for my 200L tank after water change. I will test the water 3 days after water change to see if things maintain and stablize.

    Any other clues you may find could be the real cause ?

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    Sorry missed out . Water changed is weekly on the dot.

    No algae boom for 2 months since started. Plant grows like mad . Trimming had to be done weekly, at least 1/3 bucket full.

    Cheers

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    How about trying fishes from a different LFS?

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    ----------------
    On 11/10/2003 11:48:06 PM

    PH shock ?

    My tank water had the PH hovering at 6.0 all the time.

    Can suggest the proper way to acclimatize fish to the tank water PH ?
    ----------------
    I normally leave the plastic bag inside the tank for 10 mins, this acclimatise the temp only. After that, I will use a plastic cup, scoop a cup of water from the tank into the plastic bag every 10 mins. Repeat for 3 times.
    Add another 2-3 cup of water into the bag before releasing the fish. This process acclimatise the water conditions.

    Many may think otherwise or too "ley chey". I just find it necessary.
    Cheers and Regards,
    Billy Cheong

    I'm not always dumb,
    Just most of the time...

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    Hi Neon,

    If ich strike after 1-2 days, then most likely the cardinals are experiencing stress to the new tank. Try introducing them with the lights off. This should reduce the stress.

    Anyway, if you did not cycle your tank properly with bits of bioload, then the tank may still not be mature enough or the tank chemistry may not be suitable for the cardinal.

    How about trying to raise your PH to 6.4-6.8 and then introduce the fish? Maybe the cardinals are unable to adapt to the 6.0 PH suddenly as they may be raised or quarantine in the LFS/farm where the water has already matured and PH is slightly higher?

    I may not be fully correct but it can be considered.

    Why I suggest that? Coz my tank PH is ranging from 6.6-6.8 and my tank has already matured and normally when I get some new fish, I add the fish into my tank after floating them for about 10 mins. Well, no causalties.

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    Just bought 100 Cardinal Tetras today and place them in a pail while adding some water from the main tank every 10-15 min until more than an hour. Then catch them and add to tank.
    Corydoras: 2 x adolfoi, 1 x agassizii, 5 x albino aeneus, 3 x arcuatus, 4 x atropersonatus, 3 x axelrodi, 6 x axelrodi variante B, 4 x caudimaculatus, 5 x duplicareus, 8 x goldlines, 3 x kanei, 3 x loretoensis, 6 x melini, 4 x panda, 6 x schwartzi, 3 x similis, 4 x sterbai, 4 x surinamensis, 5 x trilineatus, 4 x tukano & 3 x zygatus

    RIP 1 x adolfoi, 1 x albino aeneus & 2 x panda

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