20 Gallon Aquarium Stocking

DanniD

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Hi all!

Quick question but probably more of a sanity check... I have an established 20 gallon tank with the following stock:
3 Chocolate Gouramis
6 Lampeye Killifish
4 Otocinclus
1 German Gold Ram

I'm having some aggression problems with *one* particular chocolate gourami who is always bothering the other two. These chocolates are my pride and joy so I'm thinking about how to disperse this aggression. My conclusion: add 3 more chocolate gouramis.

Would that overstock my tank? I'm seriously considering re-homing my lampeyes if that's the case although I don't want to
 

jaymethy

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Do you already have a lot of hiding places/heavily planted? If not, that would be my first inclination to try to help with you aggression.
Also, what male to female ratio do you have in the gouramis?
 
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DanniD

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Do you already have a lot of hiding places/heavily planted? If not, that would be my first inclination to try to help with you aggression.
Also, what male to female ratio do you have in the gouramis?
Tank is heavily planted so there are plenty of hiding places... None of the other chocolates show signs of stress as they just go away and hide. Can't tell what the male/female ratio is... because only the one is usually out and the others will keep their fins lose to their body.
 

jaymethy

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Tank is heavily planted so there are plenty of hiding places... None of the other chocolates show signs of stress as they just go away and hide. Can't tell what the male/female ratio is... because only the one is usually out and the others will keep their fins lose to their body.
What if you just swapped out the aggressive one?
I'm just thinking adding more will overstock your tank, but I don't want you to have to give up the killifish.
 
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DanniD

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What if you just swapped out the aggressive one?
I'm just thinking adding more will overstock your tank, but I don't want you to have to give up the killifish.
I do love my killies but my chocolates are the real gems for me. I'd rather see more of them and hopefully some schooling behavior. All my research on chocolates show that they do well in higher numbers
 

penguin02

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IMO that would overstock your tank. It's borderline overstocked already. I would rehome the killies or swap out the aggressive gourami
 
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I would lean to the opinion that the tank is already overstocked, and would certainly not add more potentially aggressive fish. Sorry, but you might have to choose between your chocolates and killifish.
 
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DanniD

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Appreciate all the responses! But I don't consider my tank overstocked... Water parameters great and I work very hard to keep Ph and Nitrates low. No problems with aggression among tankmates EXCEPT for that *one* chocolate... Now I would consider adding any more fish overstocking from all your opinions... Looks like I'll be re-homing the killies (they eat a ton anyway!) and probably go for 2 more chocolates to create a better environment for them. If the one chocolate doesn't calm down, he'll probably get rehomed too
 

penguin02

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Appreciate all the responses! But I don't consider my tank overstocked... Water parameters great and I work very hard to keep Ph and Nitrates low. No problems with aggression among tankmates EXCEPT for that *one* chocolate... Now I would consider adding any more fish overstocking from all your opinions... Looks like I'll be re-homing the killies (they eat a ton anyway!) and probably go for 2 more chocolates to create a better environment for them. If the one chocolate doesn't calm down, he'll probably get rehomed too
Overstocking can be okay if you're willing to do extra maintenance and don't have any problems. But since you're having aggression issues, it's probably better to lower your stocking levels by rehoming the killies. You could always get another tank....
 
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DanniD

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Overstocking can be okay if you're willing to do extra maintenance and don't have any problems. But since you're having aggression issues, it's probably better to lower your stocking levels by rehoming the killies. You could always get another tank....
Don't tempt me!! :wideyed: I've already got a gardneri killifish species tank in the pipeline
 
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