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JragenL 07-26-2012 02:07 AM

Is this 20 gallon overstocked?
Hey all, :-)

I upgraded to a 20 gallon tank recently and I am cycling it right now. It's almost done cycling and I am about to add new fishes into the tank. But before that, I'd like to know if this list would be fine or if it's overstocked.

1 Male betta
1 African Dwarf Frog
6 Julii corydoras
6 neon tetra

Any other stocking suggestions would be helpful too.


Chesh 07-26-2012 08:43 AM

I'm not the best to answer stocking questions, but I think this would be okay in a 20g. I do worry about the betta and the frog, however. Betta can be quite aggressive (as I'm sure you know), and I'm afraid he might show aggression toward some of the other creatures in the tank. . . it also can be quite tricky to keep an ADF fed in a community environment, you'll quite probably have to feed him with a turkey baster or by hand to make sure he gets his share with the others around. . .

Allen5104 07-26-2012 10:20 AM


I also have a ADF in my community. He learned quickly and actually comes to the top and grabs some flake. Smart little guy. Lets hope that JragenL's little guy is smart and catches on to feeding times. Another thing to do is try to get flake in an area that not all the fish are swarming to to give time for a couple of flakes to sink to the bottom for him. As long as you do normal maintenance and clean gravel regularly like I do I have had no problems with water clarity, ammonia spikes or PH imbalances.

I am with you on the Betta though, it is a concern if he decides to get aggressive.

Though I dont think its overstocked, I dont think anything else needs added.

Im a newer aquarist to so I am interested to see what some of the more experienced people have to say. I will continue to check in.

1077 07-26-2012 10:30 AM

Were it me,,I would leave the Betta out.
Tetra's and cory's much prefer cooler temp's than Betta's enjoy.
Betta's would be comfortable between 78 and 82 degree's f while the tetra's and cory's would be happier between 73 to 75 degree's F maybe 76 degree's.
Adult betta's seldom make good community fish.

Chesh 07-26-2012 10:36 AM

Very good point(s), 1077 - and I agree. . . the Betta really doesn't belong in a community tank, though I know there are many who disagree with this.

Allen5104 - quick question for YOU - how long have you had your ADF? You mentioned feeding him flake, and though he may eat it for you (lucky!), it is absolutley not the healthiest thing for him. Try giving him the Frog, Newt, and Tadpole bites by Top Fin, which are formulated specifically for his needs. Even better to feed a variety of wet-frozen goodies, Brine, Bloodworm, Krill. . . you can even give them very thin-sliced bits of frozen Tillapia fillet (for people). I'm betting the other fish you keep won't mind these, either!

Allen5104 07-26-2012 10:53 AM


My ADF I have had for 7 months. I do blood worms for the guys in the tank to so he does get that as well. I will look into some of the frog food for him. But hes done a great job eating both the tetramin tropical crisps and the blood worms that I got. He comes right to the top every day to feed.

Byron 07-26-2012 11:31 AM

I agree with forgetting the Betta. This may well cause trouble for the neons and the frog. And in reverse, the neons may decide to fin nip the Betta.

I would increase the neon tetra, there is space, and 8-9 would be better. Six is the usual minimum number, but with any tetra more is always better, so when space permits, increase the group. You also have room for something else, perhaps some upper level fish since the neons are mid to lower water and the corys lower. Keep in mind the temperature issue raised by 1077.


JragenL 07-26-2012 01:59 PM

Thank you to everyone for their replies. I am now wondering instead of getting a betta, how about a dwarf gourami instead? If that doesn't work out either, I'll just stick with Byron's suggestion. :smile:

Chesh 07-26-2012 02:04 PM

I think a Dwarf Gourami is a FAR better option than a Betta in a community tank - but if you go this route he'll need a lot of plants/cover to make him feel secure, and he should be kept in QT for an extended period of time. Labyrinth fish (and particularly DG) are notorious for carrying illnesses that can make the tank go downhill very quickly. . . It is often recommended that these be kept in pairs (except that they're impossible to sex as juvies in the shops), and I'm not *sure* if the tetra would be a problem for them - I'm sure Byron will have more advice in that direction.

Glad that your frog is doing well! Just thought I'd mention it, because I know that flake isn't really the healthiest thing for them. It's a wonder that he eats it at all! I just LOVE ADF. . . they're seriously the sweetest little things!

Again, I wanted to say that I'm not the most experienced person in stocking and such, so hold on for more experienced replies ;) I can't wait to see the tank when you get it all done!

Byron 07-26-2012 04:43 PM

Look at another gourami species, the Dwarf is risky. The Honey Gourami is very similar, and much more peaceful as well.

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