If/When to euthanise?
Hi, im new on the forum, im having trouble with some neon tetra's and im not sure that they are going to recover so looking for some advice.
Ive got an 80ltr tank thats been set up around January this year. I cycled the tank up to 4ppm of ammonia using 100% household ammonia over a period of 5 weeks. My perameters taken today are as follows:
PH 7.4 - I know this i high for tetra's however they are tank bred and have been reared by my lfs at this ph
The tank is fairly planted and contains the following stock:
x3 Glowlight tetras (ive lost a few of these although not sure how many in total but have never had more than 5 at one time)
x5 Neon Tetra's (again as above)
x1 Blue Ram (I had a female previously, she died and i replace her with a male a few months later)
x1 Yoyo Loach
Around April when i introduced the first ram to my tank i realized (after putting her in) that it had white spot. I had a whole load of trouble and ended up loosing the female ram as well as around 3 glowlights and 2 neons. After id managed to irradicate the white spot (using meds then an after treatment of melafix for secondary illnesses) i left the tank to settle for about 4 months. I then added the ottos and yoyo. After a week of having the new arrivals all of my tetra's started looking ropey again, i lost 2 glowlights, one had major bloating before it died and the other continually rasped and died in quarantine after laying on its side for 5 days. I now have 3 neons that are looking really rather dire, although the other two are absolutely perfect specimines so im not sure what the issue is and the 3 glowlights just look skinny and drab but have no other visable sign of illness.
1 neon has a huge fluffy lump on its mouth (i believe this to be flexibacter) and stuggles to eat, 1 has a lump as the base of its tail causing a large curvature of the spine, it always looks like its sinking, and another looks fluffy but also as if its been cut had has lots of scar looking tissue all over its body making it look like a ball of lumps. All 3 are eating, swimming and staying with the shoal. It just seems that my tetra's get ill/die off when ever i add new fish. Ive been treating my tank with eSHa 2000 for the past 3 days and ive also treated it with melafix last month (they have been in this condition pretty much since September) There has been no improvement and i dont really believe there will be. So should i let them eventually die off and hope that they have an adequate quality of life up until then, should i clove oil them only when they are clearly dying, or are they suffering (although they dont currently look it ) and should i euthanize them now?
Do you think there may be a bit of harassment going on leading to stress? The way I read your post, after clearing up your first infection, various others have come up, and stressed fish are susceptible to just about anything.
Sorry I cant offer a definite answer for you
Both the Ram and the Yoyo do chase them as well as the Otto's although i wouldnt say its excessive. I suppose it could be down to stress, it is the smaller 3 neons that are ill, the much larger 2 are showing no signs of illness.
I have tried to create the perfect enviroment specifically for the tetras too which is kind of gutting. Theres plenty of plant coverage, the surface is pretty much covered by plants and theres plenty of bog wood as well as tea coloured water, not sure where im going wrong. I keeping wondering about the PH as mines around 7.4 where tetra's prefer to be around 6.8 but if they were tand bred in my local water type would that really matter?
They will cope with a reasonable range of ph - once they adapt and assuming the ph is stable. Mine are comfortable in 7.6, which it has been since day dot
Since you like neon's and your tank is only 20 gallons, why not just have a neon tank rather than try to keep several species in the tank? Neons also stay near the bottom of the tank as well as the ram and the loach so the neons are always disturbed and possibly harassed.
Glowlight tetra's should do fine with neons as well as Harlequin rasbora but I am very careful what I put with my neons because they are somewhat sensitive and timid. I know mine also do better if the temps are around 76 rather than higher. 50% of the water is also changed weekly. Your pH is just fine.
You should also have a quarantine tank so you are not constantly adding new fish and introducing Ick to your tank. Neons do not take well to medications so try to make sure all fish are healthy before they are added. (Neons are imported, not tank raised.)
Also, when you see ill fish in your tank, destroy them. There is no reason for them to suffer or continue living in the tank and infecting others.
You mentioned you cycled with 4ppms of "household" ammonia. I hope this ammonia did not contain scents, dyes or detergents? Only "pure" ammonia can be used for cycling and at your tank size, a starting dose of 2ppm was plenty.
If you plan to keep the ram and the loach, then I would get something besides neons. I would also not use Melafix. It's right next to useless in treating most everything.
Last edited by Lady Hobbs; 11-22-2012 at 10:35 AM.