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Dead Otos And Ailing Neon Tetra

Discussion in 'Freshwater Fish Disease' started by Tyrant, Apr 3, 2019.

  1. TyrantNew MemberMember

    I just lost two otos and I have zero idea as to why they died. I bought 3 the first time, 2 died but the third grew rather large over time. To get companions for the leftover one, I got 3 more otos and over time, lost two of those new ones rather quickly as well.
    Had 2 left for 2-3 weeks, today they suddenly died :c

    What is the water volume of the tank?
    How long has the tank been running?
    3 years
    Does it have a filter?
    Eheim 2213
    Does it have a heater?
    What is the water temperature?
    Fluctuates a bit between mid seventies to low eighties
    What is the entire stocking of this tank? (Please list all fish and inverts.)
    6 Platies, 5 neon tetras, 1 cardinal tetra, rhino pleco ~8inches

    How often do you change the water?
    Every week
    How much of the water do you change?
    3-4 gallons
    What do you use to treat your water?
    API Stress coat
    Do you vacuum the substrate or just the water?

    *Parameters - Very Important
    Did you cycle your tank before adding fish?
    What do you use to test the water?
    API master kit
    What are your parameters? We need to know the exact numbers, not just “fine” or “safe”.

    Ammonia: 0-0.25 ppm (never a clear zero, but never a clear 0.50)
    Nitrite: 0ppm
    Nitrate: ~5ppm, i've seen it get to around 20ppm sometimes though
    pH: 6.4 (pH of water change water is a 7.7 though and I am thinking it could be the cause of this)

    How often do you feed your fish?
    I tried to give them algae wafers and blanched cucumber (no chance at getting zucchini while i've had them) but they never seemed to touch either of them :C
    How much do you feed your fish?
    2 Wafers a night (the rhino pleco basically finishes up one) and a blanced cucumber slice ever 3 days, left in the tank for 2 days.
    What brand of food do you feed your fish?
    Hikari and tetracolor for other fish
    Do you feed frozen or freeze-dried foods?
    It says freeze-dried for the bloodworms I have for the other fish, but the neons I have lost are a separate problem I haven't gotten a solution for yet either :c.

    Illness & Symptoms
    How long have you had this fish?
    2 weeks
    How long ago did you first notice these symptoms?
    No symptoms, just pictures
    In a few words, can you explain the symptoms?
    Have you started any treatment for the illness?
    Was your fish physically ill or injured upon purchase?
    How has its behavior and appearance changed, if at all?
    They just died one day, floating in the water column.-.

    Acclimation: floating them in the bag to temp acclimate, half a cup of water every 30 minutes for around 2 hours. They survived for around 5 days afterwards when they started to die off :C.
  2. JenCWell Known MemberMember

    Unfortunately, new otos can have a low survival rate. Their capture is rough and then they can die from starvation pretty quickly afterward. It's often said that if they last a month then there's a good shot they'll survive but until then it's just a gamble. That's why it's best to buy otos that have been in the store a while. Anyway, perhaps that's the cause, perhaps not.

    Re the water change and pH variance - how much did you change? It's said that otos can be very sensitive to fluctuating parameters (though that hasn't been my experience).

    What's wrong with the neon?
  3. TyrantNew MemberMember

    IT just seems really odd that these two died 2-3 weeks after I got them, I thought the initial deaths would come in in the first few days (as it did with the first 2 out of the 4 I got)...

    Water changes are around 4 gallons every 2-3 days when I have problems with sick fish (the neons). Normally it would be once every 1-2 weeks though...water out of the tap is still around 7.6 :(

    I've attached a picture of the neon below, I've lost around 10 in the last 3 weeks and I can't tell what is the cause, so any help would be appreciated diagnosing him.

    Attached Files: