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Thread: Fishes keep dying

  1. #1
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    Fishes keep dying

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    Hi all,

    Need some advise on my 1.5ft planted tank. The tank is with me for about 6 months. At the beginning, cycled it for 1 month till all the parameters (Ammonia, Nitrate & Nitrite) are 0, den started to add fishes and shrimps in. Total added 5 small mollies, 10 cherry shrimps, 5 galaxy & 2 OTO. About 2 months after cycling, all fishes & shrimps were fine with no casualty. Number of shrimps were building up due to breeding.

    After which, I decided to add in 5 Pseudomugil furcatus and within 2 weeks all were dead. (3 jumped out & 2 dead). After another 1 month, I added in 2 Koi sowrdtail but within 1 week, both were dead too. I waited another month and then added in 2 new mollies & 2 platy. However all seems to die within 3 weeks. Now, my galaxy also starting to die off one by one slowly every week, only left with 2.

    I have done weekly water change, about 20%. Feed them once everyday and check on the water parameter (continue to be fine) weekly but still finding fishes dying.

    Can anyone advise me on what is wrong with my tank? Why all my new fishes die so quickly and now my galaxy is also dying quickly? Don't dare to add in new fish now.

  2. #2
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    Re: Fishes keep dying

    When you brought the new fish home from the fish shop, how you put them in the tank?
    Did you pour them in straight away?
    LIFE IS UNBEARABLE WITHOUT A FISH TANK!!!

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    Re: Fishes keep dying

    Hi,

    Nope. I let the bag containing the fish to rest in the tank for at least 15mins. Next, I pour it in a container and using a tube, let my tank water slowly drip into the container (about 15mins) to further condition the fishes before putting them into my tank.

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    Re: Fishes keep dying

    What chemical you use to remove chlorine?
    What filter and media are you using?



    When i just started keeping fishes they all die quickly and the way they died were belly up or jump out of the tank, reason i think it happen i never cycle the tank properly, i never condition the water and i only use 1 filter pad. Therefor i change method i condition my water first then add into the tank my filter box i add in sintered glass media(so beneficial bacteria can grow) and filter pad and let the filter run with some hardly fishes in the tank. After the tank is cycled my fishes never die anymore
    I'm A Newbie Pls Don't Flame Me


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    Re: Fishes keep dying

    Do you mind posting us a shot of your tank? This will take some detective Sherlock Homes work...

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    Re: Fishes keep dying

    Yeah, its indeed puzzling when things like these occur in a 6 month old tank, usually for a tank that has run for that long, the cycle and parameters should be very stable.

    If there are no issues with the water parameters and the fishes only started to die after the introduction of the Pseudomugil furcatus, then it could be some sort of infection or parasite that may have hopped in with those fishes that somehow also affected the others. I guess you have to observe the fishes and see.

    The other possible cause could be a change in your tap water condition (ie. higher levels of chemicals in it) or maybe the things you use for tank maintenance may have been compromised (ie. the water change bucket was used for washing clothes without your knowledge).
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    Re: Fishes keep dying

    Quote Originally Posted by maxccy View Post
    Hi,
    Nope. I let the bag containing the fish to rest in the tank for at least 15mins. Next, I pour it in a container and using a tube, let my tank water slowly drip into the container (about 15mins) to further condition the fishes before putting themfec into my tank.
    It's very hard to pinpoint the cause without much further information.
    For example, what filter did you use? What is the layout of your tank? What chemicals have you used?
    If you want bros, etc here to help, you need to upload a clear and big picture of your tank first.
    Then the analysis or diagnosis will be easier for all the bros, etc.
    LIFE IS UNBEARABLE WITHOUT A FISH TANK!!!

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    Re: Fishes keep dying

    Hi All,

    I have uploaded 2 photo of my tank. Not sure if is clear enough. Quite messy now as I have not trim the plants for a month.
    As for the Anti-Chlorine, I am using a local product. Can't remember the name. Will update again on the brand again. The bottle is not with me currently.
    For filter I am using eheim 2213 with the media that comes with it. As for chemical I using will be Flourish excel (Daily 2 caps), Seachem Stability (once after water change), LUSHGro-AQUA (2 times a week), LUSHGro-Micros (1 time per week) & LUSHGro Potassium Nitrate (2 times per week).

    Any other info needed?

    IMG_20150607_211443_HDR.jpgIMG_20150607_211552_HDR.jpg

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    Re: Fishes keep dying

    XD I don't like to dose my tank with too much chemicals as I not sure if it will stress the fish. Maybe at times lesser the better?
    Did you overdose Flourish excel?

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    Re: Fishes keep dying

    Quote Originally Posted by Bern C View Post
    XD I don't like to dose my tank with too much chemicals as I not sure if it will stress the fish. Maybe at times lesser the better?
    Did you overdose Flourish excel?
    According to the bottle, is 1 cup for every 40L. For my tank is about 2 cups. I do not have/use CO2 tank, therefore I use excel every day as a sub. Should I reduce all chemical in this case?
    Just to update about the brand for anti-chlorine, is from Pet Fran.

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    Re: Fishes keep dying

    Quote Originally Posted by Bern C View Post
    XD I don't like to dose my tank with too much chemicals as I not sure if it will stress the fish. Maybe at times lesser the better?
    Did you overdose Flourish excel?
    I agree with you that less chemicals are better, as we cannot be sure how the chemicals and their reactive actions will affect the life forms in the tank.
    One should be more concerned about chlorine and chloramine. Beyond that, it is best to season the tank in the old-fashioned way, namely letting nature take its course to build up substantial bacteria colonies. The bacteria colony is the most vital part of the tank - it is the 'engine' of any aquarium. Thus all efforts should be focused on ensuring that the bacteria is not destroyed by known and unknown chemicals present in the water.
    LIFE IS UNBEARABLE WITHOUT A FISH TANK!!!

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    Re: Fishes keep dying

    Quote Originally Posted by maxccy View Post
    Hi All,

    I have uploaded 2 photo of my tank....

    IMG_20150607_211443_HDR.jpgIMG_20150607_211552_HDR.jpg
    Your tank looks good.
    The trick with chemicals and fertilizers is to avoid overdosing.
    Usually people love their plants, so they think that more nutrients is better for them.
    LIFE IS UNBEARABLE WITHOUT A FISH TANK!!!

  13. #13
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    Re: Fishes keep dying

    Quote Originally Posted by maxccy View Post
    According to the bottle, is 1 cup for every 40L. For my tank is about 2 cups. I do not have/use CO2 tank, therefore I use excel every day as a sub. Should I reduce all chemical in this case?
    Just to update about the brand for anti-chlorine, is from Pet Fran.
    When fishes jump out of your fish tank, it might be due to stress. Maybe you can try reduce the dosage of all your chemicals or start from the one that you use the most frequent to see if any of the chemical is causing problem.
    Because we have no idea how much of those chemical absorbed or degraded before adding. Also by mixing unknown chemical content, I not sure if it will cause chemical reaction and release some toxic by-products especially with different brands.


    Quote Originally Posted by tetrakid View Post
    I agree with you that less chemicals are better, as we cannot be sure how the chemicals and their reactive actions will affect the life forms in the tank.
    One should be more concerned about chlorine and chloramine. Beyond that, it is best to season the tank in the old-fashioned way, namely letting nature take its course to build up substantial bacteria colonies. The bacteria colony is the most vital part of the tank - it is the 'engine' of any aquarium. Thus all efforts should be focused on ensuring that the bacteria is not destroyed by known and unknown chemicals present in the water.
    Yeah.. 100% agree with you. XD Let's more of the organic way. I think those fishes in the LFS also didn't enjoy so much of the chemical spa right? So let say put them in too much chemical spa will like stress them due to sudden change of environment?

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    Re: Fishes keep dying

    Thanks for both advise. I will be reducing the amount of chemical I use by half from now on. Hopefully all will be fine

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    Re: Fishes keep dying

    I have similar experience of fishes dropping dead ,
    After my 3ft was cycle 0ammonia 0 nitrite
    I went ahead to drop in neon tetra brought from aquarium shop near to my place neon tetra drop dead within 10minutes , it's almost like a instant death for them .after them being dead I panic i told my close friend about my experience he told me to try with gourami as they are hardy type of fishes , brought 5 of them , 3 of them went dead again and the survivor was struggling , I scoop hem out and pass it to my friend , clown loach also died overnight .
    I was on the line of giving up decomming everything . Till I tried with shrimp , they survived after that I tried with otocinclus and panda loach which is seen as sensitive creature they survive .

    I guess is more towards your setup and choosing suitable creature for ur tank . Ph make a difference likewise to gh and kh
    Have a good day


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    Re: Fishes keep dying

    The recommended dosage for Excel is 1 capful (5ml) every 40 liters initially or after a major water change... thereafter it is 1 capful (5ml) every 200 liters on a daily basis (or just 1ml every 40 liters daily).

    Assuming your 1.5ft tank is around 30-40 liters... dosing 2 capfuls at total 10ml daily is 10x that of the recommended daily dosage. The extra high concentration of Excel dosed everyday could be burning the fishes gills and affecting their health.

    You really have to be careful when overdosing chemicals like Excel, those are toxic in higher concentrations.
    :: Urban Aquaria ::
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    Re: Fishes keep dying

    Quote Originally Posted by submerse View Post
    I have similar experience of fishes dropping dead ,
    After my 3ft was cycle 0ammonia 0 nitrite
    I went ahead to drop in neon tetra brought from aquarium shop near to my place neon tetra drop dead within 10minutes , it's almost like a instant death for them .after them being dead I panic i told my close friend about my experience he told me to try with gourami as they are hardy type of fishes , brought 5 of them , 3 of them went dead again and the survivor was struggling , I scoop hem out and pass it to my friend , clown loach also died overnight .
    I was on the line of giving up decomming everything . Till I tried with shrimp , they survived after that I tried with otocinclus and panda loach which is seen as sensitive creature they survive .

    I guess is more towards your setup and choosing suitable creature for ur tank . Ph make a difference likewise to gh and kh
    Have a good day
    Did you put the fish you bough straight into your tank? If yes, that is a good way to kill new fish.
    The fish from the LFS is conditioned to their tank's water, as the may have remained there for a long period of time.
    Thus when you just put them into your tank, you risk causing an extreme shock to their internal organs.
    This is because your tank water's composition may be very different from the water at the LFS. So it is not surprsing that fish will be killed this way.

    The proper way is, once you reach home, to add water from your tank to the plastic bag with the fishes. Make it 50/50 by parts.
    Then put the bag to float in the tank for about 20 minutes. This will reduce the chemical and temperature SHOCK the fish will otherwise suffer.
    As the initial shock may be drastic and cause damage to the fishes' delicate internals, it is no wonder that many fish die.
    LIFE IS UNBEARABLE WITHOUT A FISH TANK!!!

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    Re: Fishes keep dying

    Quote Originally Posted by Bern C View Post
    When fishes jump out of your fish tank, it might be due to stress. Maybe you can try reduce the dosage of all your chemicals or start from the one that you use the most frequent to see if any of the chemical is causing problem.
    Because we have no idea how much of those chemical absorbed or degraded before adding. Also by mixing unknown chemical content, I not sure if it will cause chemical reaction and release some toxic by-products especially with different brands.

    Yeah.. 100% agree with you. XD Let's more of the organic way. I think those fishes in the LFS also didn't enjoy so much of the chemical spa right? So let say put them in too much chemical spa will like stress them due to sudden change of environment?
    Pity all the fishes.
    I know of beginners and also veterans who have a whole arsenal of such 'spa' chemicals of every description in their fish cabinet.
    My old fish-breeder uncle would have face-palmed loudly, lol.
    LIFE IS UNBEARABLE WITHOUT A FISH TANK!!!

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    Re: Fishes keep dying

    you got measure water parameters?

    I recently found that my tap water itself has changed over the month from (gh0/kh0/ph6/tds60) to (gh3/kh2/ph7.6/tds80)

    I have to bring it down using sera peat in the filter to 6.4/6.6

    I notice that you have not posted your tank ph. as mentioned, drip acclimatization is to reduce fish stress. rapid change of ph (from aquarium shop water. to your water) will kill fish.

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    Re: Fishes keep dying

    Nice knowing tetrakid very detail tips u have written thanks for the tips given .

    I started off with shrimp keeping I apply acclimatization using what I did for shrimp keeping , drip-acclimatization method for around 2-3 hours before introducing them into tanks . The strange thing is when I introduce them example neon tetra it's almost instant death , from there I suspected that my setup isn't suitable for certain species .


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