Hi Folks

im new to all this , so hopefully all will go well :-)

I have a problem with my beautiful pearscale , i recently introdued some fantailed orandas to my tank and they have constantly chased and harassed my pearlscale to the point where exhaustion and stress is becoming very apparent .

is there a reason for all this as i did alot of research and i was confident these fish would be compatible

Any esponses on this would be very much appreciated

Could you tell us about your set up please?

tank size, fish numbers, age and gender:water parameters, filtration, age of tank etc.

Could be breeding behaviour

your problem was caused by adding 3 fish (at once) to an already overstocked tank

120L tank will help for a while, but will not be big enough in the longer term; you will need a filter turning over 10x the tank volume viz 1200L/h

you should aim for a 250 to 300 L tank if you wish to keep these fish

In the meantime you should be checking your water parameters and looking to change 25-50% of the tank-water every couple of days..your fish are most likely experiencing toxic shock owing to the high bio-load

If you haven't got a test-kit, I suggest you buy one asap

thanks folks ...have a 220l on order , so that should sort out any issues