New to cichlids, will this work?
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New to cichlids, will this work?

This is a discussion on New to cichlids, will this work? within the Cichlids forums, part of the Freshwater and Tropical Fish category; --> Just got an Tiger Oscar and 3 Green Terrors. They are all around one inch in length. Right now they are in a 10 ...

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New to cichlids, will this work?
Old 04-11-2011, 01:14 AM   #1
 
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New to cichlids, will this work?

Just got an Tiger Oscar and 3 Green Terrors. They are all around one inch in length. Right now they are in a 10 gallon for the next hopefully 2 days while my 55 gal cycles. Will I need to get another 55gal as they grow up?
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Old 04-11-2011, 02:16 AM   #2
 
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Originally Posted by WashingtonCowgirl View Post
Just got an Tiger Oscar and 3 Green Terrors. They are all around one inch in length. Right now they are in a 10 gallon for the next hopefully 2 days while my 55 gal cycles. Will I need to get another 55gal as they grow up?
You will need much larger than 55 gallons for the fish if you intend to keep them through adulthood.
Green Terror's have nasty disposition. Oscar's not so much, but all grow quickly and produce lot's of waste which = poor water quality in smaller tanks.
Green Terrors may or may not get along as they become sexually mature,and the Oscar alone will require 75 gallon minimum assuming you wish for the fish to remain healthy.
Filtration for large cichlids would need to be heavy =six to eight times the volume of water moved or filtered each hour, for the volume of water that the tank holds. 55 gallons x eight =440 gallons per hour.
To keep all of these fish healthy through adulthood in one tank would in my opinion, require 200 gallon tank so that each could claim it's own territory and even then should the Green Terrors form a pair and spawn,, some moving of fish may be needed.
The fish are small now, but if healthy they should grow at around one inch per month, and will require larger tank sooner than later.
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Old 04-11-2011, 02:17 PM   #3
 
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I wouldn't keep a tiger oscar and 3 green terrors in anything less than 150 gallons. A 55g can house 1 Oscar if you have really good filtration.
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Old 04-11-2011, 02:20 PM   #4
 
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You will need much larger than 55 gallons for the fish if you intend to keep them through adulthood.
Green Terror's have nasty disposition. Oscar's not so much, but all grow quickly and produce lot's of waste which = poor water quality in smaller tanks.
Green Terrors may or may not get along as they become sexually mature,and the Oscar alone will require 75 gallon minimum assuming you wish for the fish to remain healthy.
Filtration for large cichlids would need to be heavy =six to eight times the volume of water moved or filtered each hour, for the volume of water that the tank holds. 55 gallons x eight =440 gallons per hour.
To keep all of these fish healthy through adulthood in one tank would in my opinion, require 200 gallon tank so that each could claim it's own territory and even then should the Green Terrors form a pair and spawn,, some moving of fish may be needed.
The fish are small now, but if healthy they should grow at around one inch per month, and will require larger tank sooner than later.
See that's what I don't understand. The people we got them from have 4 adult Green Terrors in a 55 gal, and an Oscar they have had since birth in a 15 gal. (He is 3 years old now, and hasn't outgrown the tank) I'm not trying to be snotty or anything, just trying to understand why you say they won't be alright, when clearly others are just fine.
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Old 04-11-2011, 02:45 PM   #5
 
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See that's what I don't understand. The people we got them from have 4 adult Green Terrors in a 55 gal, and an Oscar they have had since birth in a 15 gal. (He is 3 years old now, and hasn't outgrown the tank) I'm not trying to be snotty or anything, just trying to understand why you say they won't be alright, when clearly others are just fine.
If they have had a 3yo Oscar in a 15 gallon since birth it is NOT FINE. When fish are kept in tanks that do not allow them to grow out properly they become stunted, this usually means their they have the organs of an adult fish (normal sized heart, etc.) inside of a small body. This is extremely uncomfortable for the fish, gives them a poor quality of life, and they will die long before they would in a properly sized tank. At 3 years an Oscar should be anywhere from 8-12 inches in length, there is barely enough room for the fish to move around in 15 gallons of water.

Bettababy posted a story on here about 6mo ago about a fish that was given to the pet store she owns(maybe just works at?). It was an 8" EBJD that had been kept in a 10 gallon tank. The lack of swimming room caused most of the fishes muscles to atrophy. Looking at the fish you would have thought it was perfectly healthy but it was unable to swim around once it had been put in a larger tank, it just hovered in one place and eventually the fish died.

No one on this forum wants be a jerk or anything, but we all love the hobby and feel it is our responsibility to let people know when they are putting their fish in a bad position. No one here can make you do anything but I personally would consider 4 adult green terrors and an adult tiger oscar in a 55 gallon to be borderline animal cruelty.

Last edited by lorax84; 04-11-2011 at 02:49 PM..
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Old 04-11-2011, 03:07 PM   #6
 
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When fish are kept in tanks that do not allow them to grow out properly they become stunted, this usually means their they have the organs of an adult fish (normal sized heart, etc.) inside of a small body. This is extremely uncomfortable for the fish, gives them a poor quality of life, and they will die long before they would in a properly sized tank. At 3 years an Oscar should be anywhere from 8-12 inches in length, there is barely enough room for the fish to move around in 15 gallons of water. .
That is what I wanted to know, thank you :) Everyone thinks I'm crazy because my bettas live in heated, filtered tanks, not little tiny bowls, so I understand now. Do you think if I put the Oscar by himself in a 55gal would be enough? I can get a larger tank for him alone if need be, but I would need to know now how big I will need it to be because I will need to order it. How big of a tank for the 3 Green Terrors?
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Old 04-11-2011, 04:29 PM   #7
 
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That is what I wanted to know, thank you :) Everyone thinks I'm crazy because my bettas live in heated, filtered tanks, not little tiny bowls, so I understand now. Do you think if I put the Oscar by himself in a 55gal would be enough? I can get a larger tank for him alone if need be, but I would need to know now how big I will need it to be because I will need to order it. How big of a tank for the 3 Green Terrors?

First off, regarding the oscar, they grow most of their size in their first year. Oscar's are known for being one of the quickest growing fish, and if they had a 3 year old oscar in a 15 gal tank, something was SERIOUSLY wrong. Just wanted to mention that.

Okay, tank size for an oscar...its recommended to have 75 gallons with massive filtration. Not all Oscars will reach the 18 inches, they are normally closer to 12-15 inches. However, I have seen Oscars kept in a 55 gal at full size, but they just dont look happy or seem to have the right amount of room. Growing up my dad always had Oscars. His last Oscar was in a 75 gal with a Pacu. Of course one night the oscar either jumped to his death or the pacu threw him out, as the next morning he was is the hallway curved and crunchy! But they can and will jump, so a tight lid is needed on the tank. For the healthiest and happiest Oscar, you probably want to go ahead and get the 75 gallon, or larger.

As for the Green Terrors... this is a large and mean cichlid. Males are generally 10-12 inches and females 7-9 inches. For a single green terror 30-40 gallons is recommended as bare minimum. 75 gallons is the minimum needed to keep a pair, and even larger for 3. As juveniles they can get along, but once they start to mature, the severe aggressiveness these particular cichlids are known for come out and any other fish is at risk. Green Terrors are not even particularly recommended for cichlid communities and are usually reserved for species only large tanks. And these guys can easily live for 10 years and are one of the more hardier cichlids.

A reminder with young cichlids, feedings should be small but multiple times a day.

If it was me, here are the options I would consider:
1- Return oscar and 2 green terrors, keep one green terror in species only 55 gal I currently have.
2- Return all cichlids and go with smaller cichlids that fit well in my 55 gal, like yellow labs and acei.
3- Stick a green terror in the 55 gal, return the other 2. Pick up a 75 - 125 gallon tank and set it up for the oscar and maybe a good sized catfish that meets the same water parameters, size, and compatability.
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Old 04-11-2011, 04:38 PM   #8
 
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Originally Posted by WashingtonCowgirl View Post
That is what I wanted to know, thank you :) Everyone thinks I'm crazy because my bettas live in heated, filtered tanks, not little tiny bowls, so I understand now. Do you think if I put the Oscar by himself in a 55gal would be enough? I can get a larger tank for him alone if need be, but I would need to know now how big I will need it to be because I will need to order it. How big of a tank for the 3 Green Terrors?
I have kept a single tiger oscar and a common pleco in a 55 gallon, but I had some serious filtration on the tank (AC70 and an Emperor 400) and it still required large (50%) water changes. Some of that was due to my mom (notorious pet spoiler) overfeeding them at times, but a lot of it was due to the amount of waste the fish produce. As long as you can keep up the water quality 55 gallons is fine for one oscar with no other fish.

I have never kept green terrors but I would probably suggest at least a 90 gallon for 3. Even then you may end up with multiple males who will not get along when they are fully grown. I would suggest a large canister filter on that tank as well/
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Old 04-11-2011, 04:39 PM   #9
 
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If it was me, here are the options I would consider:
1- Return oscar and 2 green terrors, keep one green terror in species only 55 gal I currently have.
2- Return all cichlids and go with smaller cichlids that fit well in my 55 gal, like yellow labs and acei.
3- Stick a green terror in the 55 gal, return the other 2. Pick up a 75 - 125 gallon tank and set it up for the oscar and maybe a good sized catfish that meets the same water parameters, size, and compatability.
Thanks for the info, but I am not returning any of them. I will order a couple 125 gallons today. That will be enough for the three Green Terrors right? And the Oscar will have his own 125 gal.
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Old 04-11-2011, 04:42 PM   #10
 
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Originally Posted by lorax84 View Post
I have kept a single tiger oscar and a common pleco in a 55 gallon, but I had some serious filtration on the tank (AC70 and an Emperor 400) and it still required large (50%) water changes. Some of that was due to my mom (notorious pet spoiler) overfeeding them at times, but a lot of it was due to the amount of waste the fish produce. As long as you can keep up the water quality 55 gallons is fine for one oscar with no other fish.
Well the people I got these from have an albino tiger oscar who they want to get rid of as well, so I will go with the 125 gal.

Do you think the 4 of them will be fine in the 55gal while the 125gals cycle?
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