20 gallon long compatability/stocking help - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 56 Old 08-12-2012, 12:21 AM
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2-8" for corys?? Try 2-3". Emerald corys can exceed 4 inches, but they aren't really corys. Also, 8" is pretty big for a BN. The size of a BN is largely dependent on the sex of the fish - females being smaller.

I agree - the tank isn't anywhere near large enough for 2 species of gourami. Also, blood fins should be kept in larger groups.

If you can't keep a proper school, then you shouldn't keep the fish. It is not acceptable to only keep a couple fish because that's all you have room for. That's part of the responsibility

125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta
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post #12 of 56 Old 08-12-2012, 12:33 AM
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Don't forget 8" bloodfin tetra? Uhh, we have profiles that say fish sizes.

You know- it's much more rewarding to keep a full school of fish and watch them interact with each other than it is to have a few lonesome fish that will likely be dull and shy.

taking a break from fish-keeping.
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post #13 of 56 Old 08-12-2012, 01:34 AM Thread Starter
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ok. ty guys for all the help :) i guess i will eventually have 7 tetras, 5 corys, 4 otos, and a honey gourami. And i kinda think 5 corys and 4 otos is alot for a tank.... better stock up on bottom feeder pellets :D

EDIT: only other question i have is if the otos will be ok again back in my tank. if the first one i had died within 3 days maybe my water cant support them. anyone care to enlighten me?

Last edited by thenewguy; 08-12-2012 at 01:41 AM.
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post #14 of 56 Old 08-12-2012, 02:13 AM
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Originally Posted by thekoimaiden View Post
I would probably go for the otos over the pleco. Pleco tend to have a very large bioload and are basically poop machines. They also stray away from algae when they get older and need more meat in their diets. Otos are true algae eaters that will keep your tank clean for life.

If you went with those, a good stocking plan would be: 5 cories, 4 otos, 7 tetra, and 1 honey gourami. Putting two male gourami in a tank of this size is not a good idea as they will not have sufficient space to establish territories.
Your right two male gourami's would be a bad idea. I have one male to 3 females. And only have one male in my 20 with 6 cory's. Pleco's are known to be algae eaters but in reality they can not survive with only algae. Otto's are better for algae eating.

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post #15 of 56 Old 08-12-2012, 02:18 AM
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ok. the kind of cory i have is julii which grow to 2" max. and on this site the profile for the bristlenose pleco says that it would be fine with other fish in a 20 gallon. plus with 3-4 otos instead of the pleco, the total inch value would be 6-8 sooo.... bristelnose pleco would be a fine substitute for otos IMO.

EDIT: newtchaplin, it says ur tank has only 2 otos, are they doing fine in a small group? maybe i could just put two of those in?
I have only had 2 per tank they swim and chill with all 7 cory's. Lots of plants for shelter and turned over small pots for hides. They say you need 4+ but no you don't. All 4 otto's are around 4 years old and doing very well.

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post #16 of 56 Old 08-12-2012, 02:23 AM
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Originally Posted by jaysee View Post
2-8" for corys?? Try 2-3". Emerald corys can exceed 4 inches, but they aren't really corys. Also, 8" is pretty big for a BN. The size of a BN is largely dependent on the sex of the fish - females being smaller.

I agree - the tank isn't anywhere near large enough for 2 species of gourami. Also, blood fins should be kept in larger groups.

If you can't keep a proper school, then you shouldn't keep the fish. It is not acceptable to only keep a couple fish because that's all you have room for. That's part of the responsibility
there are over 142 species of corydoras, and they range from 1"-4.7", not including the giant emerald which grows 4-6". Yes females are larger then males. Anyone is allowed to do and stock a tank anyway they see fit.

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post #17 of 56 Old 08-12-2012, 02:28 AM
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Originally Posted by thenewguy View Post
ok. ty guys for all the help :) i guess i will eventually have 7 tetras, 5 corys, 4 otos, and a honey gourami. And i kinda think 5 corys and 4 otos is alot for a tank.... better stock up on bottom feeder pellets :D

EDIT: only other question i have is if the otos will be ok again back in my tank. if the first one i had died within 3 days maybe my water cant support them. anyone care to enlighten me?
Don't use water from your garden hose, contains traces of rubber or other chemicals. Always use water conditioner before adding to tank. Or leave water out for 24 hours. Do a 100% water change and clean and sanitize everything in the tank. Boil all bedding for 45-60 min. If you had an outbreak of any kind it will be in the tank if you just fill up and start again. Take it down and sanitize the crap out of it.

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post #18 of 56 Old 08-12-2012, 07:38 AM
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Originally Posted by newtchaplin View Post
there are over 142 species of corydoras, and they range from 1"-4.7", not including the giant emerald which grows 4-6". Yes females are larger then males. Anyone is allowed to do and stock a tank anyway they see fit.
Then why did you say cories get to 8"? As well as bloodfins and BNs.

Hmm, I think the cories and Otos are fine together. They are sensitive imports so that may be why your first one died.
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post #19 of 56 Old 08-12-2012, 10:49 AM
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Originally Posted by newtchaplin View Post
there are over 142 species of corydoras, and they range from 1"-4.7", not including the giant emerald which grows 4-6". Yes females are larger then males. Anyone is allowed to do and stock a tank anyway they see fit.
As I said, the emerald cory is not a cory. So tell me about this 8 inch cory of which you speak. Female BN plecos are not larger than males.



I have NEVER had to boil or sanitize the crap out of anything in any of my tanks. That is waaaaaay overkill. You are never going to have a perfectly clean environment for the fish, just like you and I will never have a perfectly clean living space. Diseases and such are EVERYWHERE, and there's nothing you can do about it. That's why it's important to keep the fish as stress free as possible, so that their immune systems can handle it. That's why it's important to keep fish in proper schools and the like. No doubt people can keep fish alive in less than ideal conditions for years - there are plenty of videos on youtube of awfully stocked tanks. That doesn't make it okay to keep the fish in equally poor conditions, because someone else does it.

But at the end of the day, it's your tank, and you are the one that has to look at it everyday.

125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta
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post #20 of 56 Old 08-12-2012, 10:50 AM
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If someone is on a forum for advice, then we can assume they want the best advice possible and that's what we do.

taking a break from fish-keeping.
3 lovely male betta still keep me company.
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