Tropical Fish Keeping - Aquarium fish care and resources

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Monsterpony 04-02-2008 02:59 PM

Stocking question
I keep changing my mind on what I am going to stock in my new tank and want to make sure I am not overcrowding.

In a 92 gallon freshwater tank:
10 zebra danios
10 harlequin and hengal's rasboras
4 gold barbs
8 neon tetra
4 female guppies
4 dwarf frogs
9 black skirt tetra

Is that too many fish for my tank? Any suggestions or changes?

TheBoss 04-02-2008 04:06 PM

The general rule is 1" of fish per gallon of tank space.

Monsterpony 04-02-2008 08:22 PM

Using the 1" per fish rule, that is:
20" zebra danios
10" harlequin and hengal's rasboras
8" gold barbs
8" neon tetra
8" female guppies
4" dwarf frogs
18" black skirt tetra

That equals about 76 inches of fish, but that is 49 fish in total. That just seems like a huge number to me, but then I have never had this big of a tank before. What is the ideal number for a school of fish? A friend of mine said you should have a minimum of 12 which would be difficult for all these fish.

Falina 04-02-2008 08:31 PM

Sounds Ok to me.

Have you thought about bottom dwelling fish? Seems like a lot of schooling fish for the upper levels but no bottom dwellers. if it were me I'd add a group, or 2 groups of cories. :)

Monsterpony 04-02-2008 08:38 PM

I was thinking of some kind of cory, but would I have enough room for a school of them?

Falina 04-02-2008 08:42 PM

Yep i'd say so. A group of 6-8 would be good.

I pay no attention to the 1" rule. It rarely works out and rather I take into account swimming space, agression, territories and bioload. i would never put a 12" plec in a 12g tank obviously, that would just be silly, but it satisfies the rule. you have some actice swimmers but the tank is large enough to satisfy them. Your fish chosen so far are peaceful with the exception of a bit of fin nipping, and none are of a particularly large bioload.

One thing I would do however is increase the number of neons to 12, and maybe ditch another fish or 2 somewhere. In such a large tank in comparasin to the size of the fish I think they would feelfar more secure in a larger group.

dougz 04-02-2008 11:07 PM

What do you have for filtration?

I would definitely get more tatras, and I would get Cardinals, instead of neons..

In my opinion they are nicer looking than neons, and not as prone to disease..

You could have a school of 15..

In fact, I would get 20-25, and maybe get rid of 1-2 other groups of fish..

IMHO it looks weird and artificial when you have too many different type fish together in one tank..

Go big or go home.. (ie, nix the 4 barbs, for example)

And cardinals especially look absolutely stunning in a large group, moving as one.. And the more swimming space you give them, the less crowded they'll feel, and the more apt the are to exhibit this behavior, rather than each doing their own thing..

I would add some bottom feeders and algae eaters, too, and knock the amount of other fish down further.. A school of 6 corys and 1-2 bristlenose plecos, for example..

That would add the bottom of the tank as an area of interest, instead of having all the fish in the top and middle, and they would help keep your tank clean..

Just my 2 cents....

Monsterpony 04-03-2008 12:33 AM

The reason I have those specific fish is that I already have a few of each of them. I got them to go in my 55 gal from a lfs that said that schooling fish only needed to be kept in groups of 3 or 4. Basically, I am trying to fill out the schools of each of the fish so that they will be as content as possible. I will be putting together at least one, if not two, 75 gallon tanks in August that I can split the different groups into. But until then, I am limited to having only one tank with fish in it over the summer.

Monsterpony 04-03-2008 01:10 AM


Originally Posted by Falina
Your fish chosen so far are peaceful with the exception of a bit of fin nipping, and none are of a particularly large bioload.

Which of the fish would you say are fin nippers?


Originally Posted by dougz
What do you have for filtration?

A corner overflow connected to a Tidepool II Bio-Wheel. The outflow from it was so strong that I turned it into a reverse flow undergravel filtration unit.

dougz 04-03-2008 01:16 AM


a lfs that said that schooling fish only needed to be kept in groups of 3 or 4.
Wrong, and proof that you should ALWAYS take what you hear from ANYONE with a grain of salt.. Get second and third opinions, from sources you HAVE REASON to trust (people not trying to sell you something, and who are aquarists themselves, like the people here, are a good source, I would say.. LOL).

MINIMUM for schooling fish is 6-8..

It really is to bad that you already have too many different types of fish, but I would suggest you not make the problem worse by adding across the board..

But let us know how you make out, in any case..

What are your water parameters? Ammonia, etc?

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