PDA

View Full Version : Guppy disease I don't understand


Midwestfishkeeper
07-30-2008, 01:18 AM
So awhile back I bought a small 2.5 gal tank for my bedroom. Just a small, simple acrylic tank for a pair of guppies, which I raised throughout my childhood without a problem. They were doing fine, and I was happy.

One day, the female gave birth to a bunch of baby guppies. I was, of course, excited. But then I noticed something. The young guppies started dying off. Their tails would fold down into a triangle, become useless, and they would die and get sucked into the filter. Soon all but one of the young ones had died. And then, mysteriously, the male died.

I thought there must be a big problem, so I replaced almost all the water and put in medication for fin rot, because I assumed that was the problem. I ran a full cycle (four pills) of triple sulfa, bought another pair of guppies, and got on with my life. I also turned down the power on the pump in the tank, because it appeared that the fish might be stressed.

But then, the last surviving young fish became sick and died (photo included). And one of the adult females is acting strange. Here's the symptoms as I can see them:
-Fish becomes lethargic
-Fish begins to squirm like a worm, as if it can't get it's tail to work when it locomotes.
-Fish's tail collapses to a point, and fish loses the ability to move properly.
-Fish moves to the bottom of the tank and dies.

So what disease is this, and how do I treat it or cure it?

graycurse
07-30-2008, 01:55 AM
wow, i can't say i've seen anything like this and i thought i'd seen it all. i'll keep a lookout and let you know if i find any information

graceluvsplatys
07-30-2008, 02:41 AM
ok i have had this and so have others. we still dont know what it is.
some have used interpet internal bacteria, but i used huge water changes every day for a few days. it stopped death. in your little tank, its worse than a big one. do huge water changes 2times daily, and check back, ok? well help ya

Gemstone
07-30-2008, 12:20 PM
you could try asking for advice at [Only Registered Users Can See Links.] are kinda nuts about those fish...

Midwestfishkeeper
07-30-2008, 12:37 PM
Other than "change the water a lot and hope for the best" I haven't heard much, and no one seems to know what this is, exactly.

I woke up this morning and found another one of the females dead. If this keeps up and they all die I will just discard the tank and start over from scratch.

Lady Hobbs
07-30-2008, 03:43 PM
Stressed and ill fish will often close their fins. I have a feeling that when you had the fry, it added a lot more bacteria to your tank and probably would have been fine with a daily water change. 2 1/2 gallons is a very small tank and my thought is that it just had too many fish and too high ammonia levels.

Midwestfishkeeper
07-31-2008, 05:00 PM
I've been doing daily water treatments and the surviving fish seem OK. I will continue to do more frequent water changes (I was just doing one a month) to see if that helps.

I have an ammonia test kit, and every time I changed the water I used it, and it never went up into the danger zones. So I don't know what was going on, but frequent water changes seems to help, so frequent water changes it is.

jonruthy
08-01-2008, 09:50 AM
We have had the same problems as you we have lossed 3 fully grown female guppies and 1 half grown fry, we found 1 female this morning but she has been ill for about 3 weeks we started a treatment of melfix this week but it's not helped, all the guppies that have died this week had all given birth and not recovered. Except for the fry.
We have still n idea what the problem is at all.
Sorry for your loss, we do know how your feeling.
Jonruthy xx

Ryuu
08-01-2008, 03:54 PM
Sorry to hear. The only problems I have seen is that you said you changed the water once a month? Water is supposed to be changed 25% every week. Do you have a heater. If so what temperature. If not, guppies are a tropical breed and require water temperatures from 74-78 Degrees Ferinheight.

james481
08-01-2008, 06:34 PM
I have an ammonia test kit, and every time I changed the water I used it, and it never went up into the danger zones.

Keep in mind that for any fish, but especially fry, ANY ammonia level above 0 is "the danger zone". If you continue to see any amount of ammonia in your water after your tank has cycled, you're probably either feeding too much (and leaving decaying food in the water) or your bio-load is too high for your water volume / level of biological filtration.