The Puffer Forum

I noticed earlier this evening that the bigger of my male DPs is badgering my other two quite a bit ( 1M and 1F; not an ideal combo I know, but I've had them two years and I've never had a problem ). The two males have long since established their own territories in the tank, the smaller male to the left and the bigger male to the right with a sort of neutral middle ground where I feed them, but the bigger one was patrolling the entire length and having none of the other two being in his way.

There's not been any bullying at feeding time yet, albeit the other two are warier of him, but I did notice a tiny little red mark on the female so I think he's had a go at her when he's been chasing her about

Their current setup is pretty well planted and 40L if I remember rightly. Any suggestions for what I could do to curb him being a little bugger?

You certainly have enough decor in there! May just be a bully.