preid

I have a nice tank set up and no casualties in the 4 months it has been set up. All levels are normal. Within the tank are 4 tiger Barbs, The largest of the 4 is being chased by the medium sized barb who I have noticed has started to hide in the low plants and frantically shake his tail !!! Is there something wrong or is this a behavioural trend or even a mating sign

Butterfly

The one thats being chased is stressed thats why it's hiding. This can lead to disease.Do you have anyplace to move it to? Maybe add some more plants to hide in?
Carol

preid

Thanks, The fish does look very stressed, as I mentioned its one of the smaller of 4 barbs that is chasing the others continually, it has only been doing it for the past few days. Why has the fish suddenly become aggressive when it has been quite placid for the past 4 months ??Would it be easier to take back the aggressive fish ??

Butterfly

What size tank s this and what else is in it? Could you post your water testing results please? ammonia, nitrite, and nitrate?
Carol

preid

The tank is 63 litres with 4 tiger barbs all under 2 inches , 5 neons , 3 swordtails ( 1 male 2 females ) 3 golden barbs. Plenty of hiding places and plants... The only disrupttive fish and only in the last week has been the 1 tiger barb, it only seems to chase the other tiger barbs.. Assistance gratefully recieved

Butterfly

Thats just a little over 16 gallons, so your tank is stocked. Maybe the best thing you could do for the tank is to give away the aggressive fish.
Carol