My tropical fish won't live...I thought I was doing everything right. Please help me :-(

I’ve been having a lot of trouble with tropical fish at the moment. I had a Siamese fighting fish for a couple of years and was always perfectly healthy and he died a couple of months ago.
A couple of weeks later I bought another along with three neon tetras. The neon’s died within days and about two weeks after I got it the Siamese died too. There appeared to be nothing wrong with each of the fish before they died. They all seemed perfectly healthy until I arrived home from work or woke in the morning to find them floating.
I waited a couple of weeks and then my sister bought me an Angelfish, but again a week later it died without warning. Each time I have used tank water (the same stuff I used for my first healthy Siamese), and treated it for algae etc. but they just keep on dying. I don’t know what I’m doing wrong. I have a heater in the tank set to the right temperature and have tried everything. I’m always careful when feeding them too… HELP!

do you know that siamese fishter or betta loves to live in the bowl rather than a tank,because they cann't able to survive the high depth of water,many a times i observe that the betta lives bottom or very top of the aquarium where as they live well in a bowl,so in my opinion keep the betta in a bowl...

How big is the aquarium, and have you tested the water for ammonia and nitrite? Most of the time when you move a fish to a different aquarium, the move shocks their immune system, making then vulnerable to all sorts of diseases and parasites. The drip acclimation technique will help avoid much of the moving shock. One of our blogs has more details about it. Also be sure the aquarium temperature is appropriate for the species of fish it houses.

im sorry i have to say something against achintya bettas live so much better in larger tanks they love it. just because they lived in rice patties in the wild doesnt mean they like the shallowness of it. and its not normal for a betta to stay in one spot for a long time and a healthy betta with be swimming around everywhere and flaring at its own reflection.

i think the best tank for a betta is a planted 10 gallon.

now back to karen~ if you have a bowl for your bettas, neons, and angel, that probilly was to small even for just the betta. 3 neons would need a 5 gallon or bigger alone ( i have a 10 gallon set up with a male betta and 6 tetras). the betta in a bowl alone would do okay with daily water changes but would do A LOT better in something bigger. the angel itself would need over a 10 gallon.

ok,i take your opinion,in india i see the betta lives in the bowl,here no one can keeps the betta in a new tank,so i seem that betta loves to live in a bowl rather than a tank..moreover you know better aabout betta than me,i completely agree with you,thanx for the information..

Personally, I don't like to see any creature confined to a cramped space. A small fish may not have a sophisticated brain, but they are aware of things and they can be made very uncomfortable. If you buy an aquarium fish, you're responsible for providing it with a decent environment.

WOW! That sounds kind of preachy.