Monster Cichlids: Fish to Tank Ratio

TheViciousBitch

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I don't understand the "not concerned with water quality" part, sort of a silly thing to say when you're asking for advice here lol.

But in my mind, the correct answer is: however many you can keep healthy and happy in your tank. This is not just about tank size but also the species youre stocking (oscar much different than jaguar cichlid) filtration setup, maintenance routine, and most importantly the experience of the fishkeeper in keeping these fish.

i could try and set up a tank like youre suggesting and probably fail horribly but there are a lot of cichlid specialists here who could probably pull it off.
Thank you - I should have phrased it differently. I meant, I don’t need guidance on massive filtration and flow (though I always will take advice, I’m not clueless in the area of sable water quality). I do need guidance in understanding personality, territory, swimming preferences, etc for monster American cichlids. In that aspect, I am clueless.
 

TheViciousBitch

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The OP specifically mentioned wanting the fish to be "happy", which I interpret as meaning healthy and stress-free, able to move around and behave as naturally as possible. Plenty of Vieja species can hit 14 or 15 inches, and I've seen a few specimen that exceed that. I'm not a cichlid guy, but the single Vieja I kept (sold as a synspilum, but could have been anything...) easily hit 15 inches by his third year. A 15-inch Vieja is a big, wide, tall, heavy, brutish, relentlessly-aggressive fish.

How big do you think his aquarium should have been? As he grew and aged, his tankmates dwindled...some were simply murdered overnight, many others I removed to prevent that eventuality. That was in a 360-gallon tank; I threw in the towel and re-homed him once that tank was reduced to three fish total: the Vieja, a big buttikofferi and a big managuense. That was a high-stress tank, always on the knife-edge of violence, and it continued that way for several years. The only way those fish were "happy" is because each of them dreamed and schemed and planned on being the sole survivor. It embarrasses me to think back to how silly I was trying to make that work in that tank.

That was 30+ years ago, and that tank completely cured me of any pipe -dream for a big happy family of aggressive monster cichlids. I'm sure that is achievable, given a big enough tank; I don't know what is big enough, but I dang sure know that a 100, or a 240, or a 360 is not it.
Thank you. Yes, that is the concept with this tank - only monster aggressive *******s. So they are all equally matched in size and aggression.
May be a pipe dream. Trying to do the research now, at the beginning… not 47 min before ordering 30 fish that will destroy each other in a tank half the size they need.
 

TheViciousBitch

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Well there is the old debate, but the OP doesn't want ONE Vieja, they want a bunch of big chiclids and not a lot of violence presumably.
Yes, I don’t mind aggression if everyone is just having a little brawl and the tank isn’t stressed and injured/sickly from it. One of the reasons I want all big, not a crazy mix.

But I have enough experience that I know at least one, if not half, the fish I put into an aggressive tank will have problems. I expect having to make adjustments based on the specific fish. But, I would like a general idea of 1 fish for 50/75/150 gallon to have the least chance of a death match nightly. Another poster said 1 fish per 240 gallon. Not sure that is accurate based on everything else I’ve reviewed on YouTube. But I want a large range of real experience to help inform my future plan.
 
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TheViciousBitch

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Which is basically impossible, it’s always a gamble with big aggressive SA/CA cichlids. That’s why the more experienced I get, the more I find myself keeping species only tanks, instead of mixing large aggressive cichlids together.

Can it be done? Maybe, I’d say you’d have a one in 100 chance of keeping EVERY single fish in there happy and healthy.

People don’t realize just how big a 12-16 inch fish is, and the amount of waste they produce. Multiply that by let’s say 6, you have six 12-16 inch highly aggressive cichlids all battling for dominance, and you KNOW at any point in time one of these fish could snap and decide it doesn’t want tankmates, then I’d say you’d need a 600g (at minimum) with a ton of hiding places to establish territories to keep every fish from murdering each other.
Thank you. This might be the way. Big one big species, get a group, and keep them with smaller fish like severum/geophagus that they will be happy to ignore.

I am not here for confirmation bias - I am willing to let this dream go. No matter how confident I am about my planning and fish keeping, I know I won’t be able to match the systems the massive YouTubers maintain. It take more than just time and a ton of money… you need luck and to be willing g to restart and ditch the fish a week after the impressive video. Lololol. To keep these fish healthy and happy for years requires caution and planning!
 

TheViciousBitch

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My answer was to the posed question of a proper size tank for a "community" of large cichlids scenario.
Not really about just 1 Vieja.
I have been able to keep compatible pairs of adult Vieja in tanks as small as 150 gallons, but.....
the rub can come into play, when a community of large, diverse, often competing cichlids is concerned, where someone tries to cram differing types that may not work together in a small a space (in comparison to nature), and where hundreds of gallon may in reality be too small, or where a 1 square block section of river isn't possible for that combination without friction.
I have spent enough time diving with cichlids in nature to know that combining certain types together in even thousands of gallons can be brought with problems, and where certain species are totally driven off, off or killed.
Looking at some of the ragged looking uropthalmus in the video I took in the million gallons of Cenote Azul might be an indication.
Azul imovie edit
Thank you. It might be best to plan only one species of monster in a 600+ gal.. then smaller species to compliment. I want to keep considering multiple monsters, but if it just fighting daily, that isn’t fun for me or good for them.
 

TheViciousBitch

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I could keep a St. Bernard in a one-bedroom apartment for life, but it doesn’t mean it’d thrive there, or welcome a bunch of other dogs into its space.

Imagine clowning yourself by trying to justify keeping fish in smaller tanks, while calling experienced hobbyists “amateurs” for advocating for larger, more natural living conditions that would improve the lives of the species we keep.
I’m with you. That is why I’m asking. I want people who have kept monsters for years, to share. I might love the idea of 15 massive fish in a 600 or 800…. But if that is just bat s4it crazy… I would rather abandon the idea before the tank planning stages and go a different way.
 

esoxlucius

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There is a word that comes up on MFK now and again when questions regarding fish compatibility arise.....that word is "crapshoot".

It is probably the best word to sum up this monster cichlid dream tank you are planning. Would your tank look awesome? hell yeah. Would that same tank, maybe not at first, but certainly somewhere down the line, give you sleepless nights due to all the constant aggro? quite possibly. The outcome is a complete roll of the dice.

A calmer monster cichlid tank in my eyes, just as awesome on the eye, would be a huge tank with oscars, chocolate cichlids and severums (why did you state "NOT" severums). They're a great fish.

Those are more peaceful large cichlids. I think you'd have a better chance of some level of harmony, but at the end of the day we're talking about cichlids here and there we go, that word creeps back in.....crapshoot!

Can we interest you in a goldfish tank intead, lol!
 

duanes

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would rather abandon the idea before the tank planning stages and go a different way.
Its not necessary to abandon the entire idea, but more to refine it with species compatibility research.
In your list you have a number of species from widely differing habitats, and water parameters.
I see soft water preferring Amazonian South American, but also hard water preferring Centrals, etc etc.
I see cichlids that are the only cichlids species in their habitat, and others that may live in a more species diverse habitat.
You mention previously keeping Africans, does this mean your tap water parameters are mineral rich, and high pH?
Rift lake Africans are often very social species that in nature, thrive with other lots of other cichlid species together in a limited reef-like area.
If your water is hard/high pH, Central Americans may work well,, although Centra Americans are often loners, sharing habitat with non cichlids, (non competition for resources).
In a tap hard water based tank, certain Amazonian species may be at a disadvantage, and that disadvantage could make them targets for those more suited to that environment.
Now with this, I'm not referring to all S Americans.
You first mentioned two S Americans from west of the Andes. (Andinoacara, and Mesoheros)
The water parameters west of the Andes are generally far different than waters east, and species from west would never encounter more placid easterners like oscars or severums.
Western waters are generally more alkaline, and a tad cooler, the cichlids often act more territorially (like Centrals) than those from the east that come from diverse, species rich habitats.
Of course these are generalizations that may be bucked, and by-passed successfully by some aquarists.
I jus use this type info to help make my combinations more likely to work.
 

duanes

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I believe my attitudes are sometimes considered narrow, probably because I am biased toward biotopes.
I find mixing a cichlid like H carpintus, that comes from northern and central Mexico where there are more obvious seasonal changes and cool nights in the 50s'F, with a cichlid like Darienheros calobrensis from Panama where temps are almost always in the mid 80s or higher is not advantageous.
Below H carpintus "Lago Chairel", the lake gets seasonal cool in winter, and storms make it seasonally brackish
1662470704439.png
I also find it problematic to combine a loner like Mayaheros beanii (the only endemic cichlid in its northern Mexican habitat) with more social cichlids like Geophagines and expect it to turn out hunky dory,
Below, female beanie
1662470772991.png
below average temp of my beanii tank, and the temp they spawned
1662470961929.png
Geography also comes into play with these, Mayaheros are the most northern cichlid from the west coast of Mexico and experience much cooler average temps, than Geophagines from Brazil where temps average 80'F
1662470837351.png
Above, Tribe Geophagini, Acarichthys heckelli, average tank temp 82'F.
 
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