Help solving murder mystery?

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I think one male dovii should have a 300 gallon aquarium for itself. i think a female should have 240 gallons for herself. i think a pair needs at least 400 gallons. So you should get at least 350 for your current stock.
 
, but yeah now the fish basically follows you if you walk by the tank which is pretty annoying, ....and now he's just all over the tank never have seen him active like this before...
Now he's acting like a Dovii. That's what people enjoy about them.

My roommate won't buy into the Dovii snapping theory....

You can explain it to your room mate, but you can't understand it for him.
De nile ain't just a river in egypt.

Maybe if the owner reaches in to scritch him behind the gills, the dovii will calm down again. He seems traumatized.
:popcorn:
 
Thanks guys! Yeah it's actually awesome the nitrate and everything in the water is balanced perfectly so that can assuredly end any fear the killing of the Frontosa screwed up water lvls... guess we got our culprit haha.

This really makes you appreciate the longevity of these Dovii (and Umbee too) where by the age 4 there hitting the puberty that a Convict cichlid is having at 10months to a year. It sucks that the tank is between the couch and bathroom, I hope Simba (Dovii in question) doesn't hurt himself running into the sides of the tank. I've read that can be a problem.
 
Basically now he's always on watch, and when you get too close he just flares his gills out and makes his head like 3" wider. Hopefully he doesn't start getting momentum going into the side of the tank haha.
 
You could put a background on the sides of the tank or paint then so he cant see from the ends. Thats how i had to do my males tank.

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Frontosa was a real bad idea, frontosas are best kept in groups of their own kind. Its obvious the dovii did it and its probably because the dovii wanted to remain the dominant one and he was in an established tank unlike the frontosa. Also, the dovii was probably protecting HIS territory
 
Did you know dovii's secretly hate frontosa's?:y220d:

lol JK, but yeah because the dovii lived with all the other fish peacefully for years, then adding a new tank mate all of the sudden made the dovii snap. He was comfortable until seeing a newcomer which he did not know of, then made him snap because it looked like a threat to him. Pleco's and loaches do not look like threats from my eyes nor to a dovii but a frontosa for that matter..... it's quite obvious why he turned into killing machine.

We shouldn't forget that dovii's are killers inside out, it's in their blood. Noone can change that.
 
This reminds me of my old Flowerhorn. He lived peacefully with several other fish, then one night he snapped and I turned the lights on to 3 corpses (A black ruby barb, a female Cutteri and a a female Convict)

Dovii are off the charts with aggression, especially when you're talking about one that's near 20"s. He merely tolerated the Clown Loach and Pleco, once the Front was added (I'd go slap that guy that told him a Front would be a suitable tankmate for a Dovii that big) all bets were off and they were just a victim of his rampage over the new fish.
 
Hey sorry for the bump, gotta ask a question before my roommate goes and makes a horrible decision. And yes IMO this is a horrible call,

Anyway he's been pretty bummed about loosing 2/3 of his stock (really 3/4) and still wants to add fish. I'm saying either give the Dovii away (which he won't) or accept it's gonna live by itself. Anyway, as stated once before the tanks 210G just to keep in mind. Anyway we tripped down to the LFS and saw they got in a new Jardini (you can see where I'm going here) its 15" right now and the guy said it'll grow to 24" and is fine in a 210G with a tank mate. I told him it was a Dovii that just went off on everything it's ever lived with. He said worst case scenario if they're fighting take out the Jardini and bring it back but he's never heard of a Dovii even one at 20 inches killing a Jardini. I think it's a risk and waste of money but what are some opinions here? Would adding that large of a Jardini to a 210 tank with a newly pyscho Dovii just asking for a disaster or could they tolerate one another?

 
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