| I have a 10" pleco in a 55 gallon tank with 4 red belly piranha. At first they were curious and would swim up close to him and he would smack at them with his tail, running the piranha away. The piranha are about 3" long now and they dont bother the pleco at all.
Now they all get along and I have never seen any bite marks or fins nipped. Also I keep the piranha pretty well fed so this could be a big factor of why they havent bothered him, but so far they have never shown any aggression towards the pleco.
Maybe its because he is 3 times their size, but I dont think that really matters when its 4 on 1, especially with piranha. |