Why do my fish keep dying?

Question

I have a biorb fish tank and every time I put some tropical fish in the tank they die after about a month. I change the water every two weeks, I never have too many fish at once, the temp is correct and I have real plants... what am I doing wrong?

Answer 1

maybe you are overfeeding them ask an expert about it it's better

Answer 2

use aqurian tropical and buy a uv sterilizer thats why they die you dont have a sterilizer

Answer 3

I concur on "Double Dachshunds Owner's" answer.  Also, make sure if you take the fish out of the tank when you clean that you cup them out and put them in a bucket, bag, or bowl that has the origional water from the tank you are cleaning in it.  Also, don't just put them right back in the water.  You have to acclamate them to the water slowly, or else they could go into shock and then die.  

Answer 4

Dont pollute for tish,

Ha' they dont like Yu!

Answer 5

You should cycle the tank first before putting any fish. Check your ammonia and nitrite levels. They should both be zero.

Or you are probably overfeeding your fish. Possibly there is something wrong with your water chemistry. Not all fish will adapt to your tapwater.

Answer 6

I don't think you should be changing the water every two weeks, and certainly not all of it.

Edit, don't rely on the experts in the pet shop because a lot of them are dickheads rather than  experts.  Read a good book or two on the subject.

Answer 7

1st  of  who  ever  advised  you  to  purchase  a  bio orb  tank  these  are  fine  for a  couple  of  goldfish , But  if  your  going  to  KEEP  hold  of  this  tank , then  DO  NOT  change  ALL  water  as  you  stated . HAVE  you  got  a  decent  filter  system  Installed ? . Take  my  advice  and  grab  hold  of  a  (decent  proper)  3ft  tank .GOD-HELP  me for  advising  a  FEMALE  !!!

Answer 8

I think Rikesh is the one that is actually on track here.  I don't know any other way to say this, so I'm just going to be direct.  It has become apparent reading over answerers from Europe as well as reading in Practicalfishkeeping.uk, there is a totally different approach and logic to fish keeping there and here in the USA.  I've seen subtle differences in accepted approaches listed, so if I'm not in line with the group thoughts here, then just pass me over.

Like what Rikesh said, I have a feeling that your tank never fully cycled out.  The nitrogen cycle is what I mean.  Fish, in a new tank, through many means, emit ammonia into the water.  As this ammonia builds up, a benefical bacteria begins to grow which oxidizes this into nitrite.  After ammonia begins to drop, a secondary strain of bacteria begins to grow which oxidizes the nitrite into nitrate.

Both Ammonia and Nitrite are highly toxic to fish, and for your bacteria colonies to grow out properly, a few things need to occur.  First is time.  It takes about 6-8 weeks for your bacterial colonies to grow out to a size which any incomming ammonia is immediately oxidized into nitrite, and then the nitrite into nitrate.  Secondly, you need to have a proper sized filter in order for the said bacteria to inhabit.  Because these bacterias are aerobic, they typically reside on the top end of your filter or in your mechanical portion of your filter, the sponge.

That being said, many people will elect to put pure ammonia or fish food, something that will produce ammonia into an empty tank before populating a tank which is fine, but not a necessity.  I would agree the first thing I would do in your case is test your ammonia and nitrite levels.

Next, how old is this tank, and what is the size and total population in there?  This information would help out quite a bit.  I'd also suggest, depending on your bio load in this tank, the size, population and filtration, you're probably better off doing those partial changes on a weekly basis.  Once a tank is mature in terms of the nitrogen cycle, your goal should be to keep your nitrate readings at 40 ppm or under.

Answer 9

ask the experts in a pet shop

Answer 10

Many posssible reason.. the climate mgiht be wrong..

though u change often, they water condition might be bad..

2 weeks for a 100 gallon is consider good..

but 2 weeks for a 1 gallon water is considered awful!

HOW BIG is ur tank? u gotta gauge ...

=)

all the best

Answer 11

ur not taking care of it haa

Answer 12

When you change the water do you leave about 2/3's of the original water in the tank?  Also, do you add a dechlorinator such as Stress Coat or Aqua Safe?  Unless you are on well water, you need a chemical remover such as these to take the city water chemicals such as chlorine (deadly to fish) out.  

Here is a website that will give you more information:

http://www.firsttankguide.net/dechlorina...

Answer 13

you are changing your water too often,

your water should only be partially changed once a month and complete change after three months,

are you using safe water to treat the chlorine,and do you have a good ph level 6.5 is normally a good level,

is your filter working properly?

i still think you are changing your water too often,even though you are using the correct chemicals and your test comes back fine the safewater is still a chemical and you are probably poisoning your fish inadvertantly.

Answer 14

i do not now but u can ask expetrts in the pet shop.r u feeding them corectly??