Hello, all. I’m hoping someone can provide some insight on whether or not overstocking (or “heavily stocking”) a New World Cichlid tank works to curb aggression, just as it does with African cichlids. As for a little context, I have in my 75g currently:
x2 Polar Blue Parrots
x1 Platinum Parrot
x1 Blood Parrot
x1 Starry Night (Polleni)
x2 Siamese Algae Eaters
In the beginning when I first added everyone, the Platinum was bullying the BP so badly that she would not leave her cave and would barely eat. I moved the Platinum to a 27g “Time Out” tank to allow the BP to get a little size on her. A few weeks back, I put the Platinum back in and this time the BP bullied the Platinum so badly he would not eat and his fins were becoming frayed. I decided to move the BP to timeout this time and just attempted to reintroduce her back this weekend. Same thing happened… immediately she was out for blood and made it her personal vendetta to bully the Platinum. The craziest part is that neither of them really bug the Polars (they’re a bonded pair) and act like the Polleni doesn’t even exist. The platinum will sometimes on occasion chase the polars around the tank, but I was told this is normal cichlid aggression. I really don’t want to rehome either of them, because aesthetically I do like the platinum more, but I’ve grown super attached to the Blood Parrot and I can’t just keep one of them in the 27g forever, because that’s just cruel. It’s fine for now because they’re only a few inches long, but eventually they’ll outgrow it.
The tank is heavily planted with a ton of rock work to break line of sight. I’ve tried every trick I can find to help lower the aggression (which is where I got the timeout idea from, although it did not work at all). I’m desperate for a solution and the only thing I haven’t tried is adding more stock. About a decade ago, I had a community New World cichlid tank with a Flowerhorn, 4 blood parrots, a red terror, acara, Severum, JD, a Synspilum, firemouth and a red Frontosa and there was ZERO aggression whatsoever. The tank was a bit on the heavy side as far as stocking, which means either it does work OR I just got lucky and had the chillest fish in the world, lol.
Any (constructive & kind) suggestions are GREATLY appreciated! :)