In order to help us assist you with your problem, we need some info first! If your oscar is sick (or something like that) and you don't know what to do, i t would be very helpful if you could copy the red text and paste in your thread... please answer all questions possible.

-Water parameters

We'll need exact readings for ammonia, nitrite, nitrate, and pH. "My waters fine or my waters perfect" dosen't really tell us anything. If you don't have a water testing kit you can get one at and lfs. Most will do it for free if you don't want to buy one. Remember to ask them each of your parameters, many lfs will just say "your waters OK" or "your waters bad" but this doesn't help us.

-Oscar behavior

Is your oscar exhibiting any out of the ordinary behavior? (if not, then skip this question).

-Tank-mates

Sometimes other fish can cause a problem by biting, nipping, etc.

-Tank size

How many gallons/liters?

-Equipment

Are you running a bio-wheel?

Are you using any medications?

Chemicals, too. (i.e. algaefix)


We also need a photo to identify the problem at hand.


With this information, we'll be better prepared to help you with your problem.

Art

Hi
im james i need your help i have two tiger oscar, but the other one doesnt want the other one to be in the tank the other one keeps on bitting the other one.so i seperate them, but the problem is i cant keep them in diffrent tank because they will get big i have two tank a 175 and a 10 the 10 gl is where i put the other one and the other one is in the 175 gl bt ill be needing the 10 gall for my molly, pls help me pair them

It will be difficult to put the aggressive oscar in the tank...the only way i can think of is to set-up some dividers.

i agree dividers do wonders they can see each other and get use to each other untill they decide to live in harmony & dividers are really cheap on e-bay or LFS

Oh, and dithers may work too(target fish).

hi im new to the site and haveing oscars i have a 250 lter tank with 3 rocks and 1 peace of slate my fish are 2 tigers about 2 inch 1 red about 1 and a half inch and 2 red lutino 1 about 3 inch and the other 2 inch i have a jewel internal filter im getting a external filter in two weeks the water is ok ive had them for 1 week and the larger of the red latino is bulling the smaller latino and has dammaged her tail and cordal fins i seperated her but now he is attacking the others could you please give me some advice thanks tony

hi im new to the site and haveing oscars i have a 250 lter tank with 3 rocks and 1 peace of slate my fish are 2 tigers about 2 inch 1 red about 1 and a half inch and 2 red lutino 1 about 3 inch and the other 2 inch i have a jewel internal filter im getting a external filter in two weeks the water is ok ive had them for 1 week and the larger of the red latino is bulling the smaller latino and has dammaged her tail and cordal fins i seperated her but now he is attacking the others could you please give me some advice thanks tony

hi and welcome firstly id like to say that 250liters is enough space for one oscar only,oscars grow approx 1inch a month so within a few months there will be no space for them to move in yr tank.

there is no way u will be able to keep the water quality good and yr fish r gonna start fighting for territory and all the amonia build up will eventually kill them.

my tank is 600liter with 7 6inch oscars in with 3 canister filters rated over 3600liters of filtration per hour and still i need to do at least a 50% water change weekly and vac my tank twice a week.

my best advice would be get a 1000liter tank or return yr oscas to the LFS and only keep one in yr 250 liter tank

THEY R FIGHTING COZ OF THE LACK OF SPACE.

All oscars are different and some are more aggressive than others. Some can be downright mean so i would return the aggressive ones. A friend of mine had an oscar that was half the size of his larger 2 but he would constantly go underneath then and attack them, it was just a really mean oscar so he returned it

Vbaby is right you will soon run into problems from having too many fish in your tank

In the mean time test your water regularly and if your nitrate goes above 40 then do larger or more often water changes(start with 50% once a week), and get that external filter pronto. Get one that is rated for a tank twice the size you have i.e. 500 litres. Only feed them what they will eat in 2 or 3 mins no matter how much they beg. Oscar are professional beggars

thanks for your help, cant get bigger tank at moment because of money, so if i take 4 of them back to the shop will he or she be lonely and what tank mates would you sergest. the reson i got 5 was because the shop owner said i needed 5 then 2 would pair of , thanks for your reply and hope to here from you soon ...T

To be honest with you you only have enough room for one oscar. Oscars get really big and if you have more than one full size oscar you will have trouble keeping the water good for him. But if you must have a tankmate choose one that doesnt get too big, something like a firemouth or a blue acara

i agree you havnt enough space in your tank you imagine sharing a bedroom with your brother sister and mate from across the way im sure one of you would be fighting for the best places to relax (on the internet on ofl) the only thing i can suggest is take on of therm bk it will be better in the long run

regards ash:ohmy: TAKE ONE BACK