Whats wrong in my tank? I did all the necessary stuff, setting it up,feeding, whats happening?

Question

on december i had:
12 neons
10 glowlites
i lost 9 fish and then

on january i had
6 neons
7 glowlites
3 swordtails
6 guppies
i lost 5 fish and then

february i had
4 neons
4 glowlites
3 swordtails
1 shrimp
4 guppies
i lost 7 fish

and now i have
2 neons
1 glowlites
3 swordtails
5 sunset platies
10 guppies

NOTE:
its a 15 gal tank
i feed my fish 2 times a day
it has lots of plants
i am from the philippines (hot,humid climate)(unstable)
it has rocks and pebbles
i make sure everyone feeds


i have yet to lose a fish this month
march is my best month so far in handling fish

-they just die the next morning one by one

-temperature....hmmm i dont have a thermometer but if you are asking what kind of
climate we have here...it is hot-very hot-hot and so on....

i never spotted and disease on them except for the one glowlite who had been swimming sidewards.

i always keep my water clean.
except for last week.
only a glowlite died last week anyway.

i have an oxygen and filter system.

Answer 1

As already mentioned, you have way too many fish. A 15 gallon tank should have about 6 or 8 tetras (general rule of thumb is 1" of adult fish per gallon of water) and nothing else. Also, neons are not good fish for a new tank. They need a tank that is cycled and mature. Feed once a day, (an amount about the size of a dime or what they eat in 3 to 5 minutes). How long have you had the tank set up? I imagine the tank isn't cycled (or maybe just finished) and the large number of fish you have plus the excess food are driving the ammonia and nitrite off the chart.

Also as mentioned, you need to check your ammonia and nitrite. You can take a water sample to your fish store and they will check it for you but I suggest you get a liquid (not strips) test kit (American Pharmaceuticals Master kits are great) so you can test on you own. You also need a heater for tropical fish. They need the water temp around 78 and room temp won't keep it that warm. Check the link below for one of the best fish forums around. Everyone there is very helpful and friendly.

Answer 2

There were too many fish, probaly spiking the ammonia up to dangerous levels.

Also, the inch per gallon rule is not to be trusted. It can be applied to very small fish like tetras, possibly, but it's pretty stupid. Following the rule, you could keep a ten inch fish in a 10 gallon fish. That's stupid.

There are two many other variables to take into account to make the rule trustworthy/ the better thing to do would just research the fish you want, and take it from there. No inch-per-gallon dopey rule.

Answer 3

I have a 25 gal and I don't even have that many fish in it.
1. you have a little 2 much fish
2.you have 2 feed once every other day
3. You should get your water tested by your petstore.
4. you should choose 1 TYPE of fish and put them in a diffrenet tank or give away\sell them.

A$h!

Answer 4

I would say you have a few too many fish for the tank and are possibly over feeding them a bit. Try taking out the swordtails and see if that doesn't stop the loses.

MM

Answer 5

you need to check your ammonia and nitrates..and nitrites. you probably should get a thermomater. Plus, I would limit your feeding to 1 a day..see if that helps. A lot of times at pet stores, they will do a water test for free.

Answer 6

you have to many fish. that all require different pH levels. i would get your water tested, it may be too low or too high. also get a thermometer!! and are you changing 25% of the water per week?

Answer 7

sounds like you had WAAAAAAAY to many fish. it's supposed to be 1 inch of fish per gallon

Answer 8

cOULD BE LACK OF OXYGEN. tHE MORE FISH HOTTER WATER THE LESS OXYGEN ALSO CHECK YOUR LEVELS OF AMONIA AND nITRITE AND nITRATE YOU COULD BE OVERLOADING THE bIOLOGICAL FILTER. tKE YOUR TIME WITH ADDING FISH

Answer 9

You have too many fish.
And you're feeding them too much.