have 10 gal tank - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 07-20-2012, 01:19 PM Thread Starter
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have 10 gal tank

I have 1 dalmation molly, i want to add one more dal, 1 blk molly, two danios an bottom feeder,i also have two small live plants, need to know if this is a good idea
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post #2 of 5 Old 07-20-2012, 01:27 PM
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Hello and Welcome!

I'm afraid that would not be a good idea.

A 10 gallon is too small even for a single Molly.

For that size tank, look for doing a species only tank, as almost every small fish is shoaling in nature which means you need a minimum of 6 of the same species (not, say, 2 of 3 different tetra species). It's possible to have a mid/top level fish and a bottom fish group, but only if they are all on the very small side.

You also need to find out your water hardness (known as GH for general hardness) to know what kind of fish you can stock.
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post #3 of 5 Old 07-20-2012, 01:34 PM Thread Starter
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The guy at the store told me 3 mollys would be fine as long as i do water changes an he also said something like i can also add a cory or oto fish he also said my water is fine he the one that did my water testing I'm new to this
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post #4 of 5 Old 07-20-2012, 07:32 PM
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I'm afraid they gave you bad advice, which is all to common from most stores. Most of the time it is just ignorance, employees who work at the store either just because it is a job, or because they like animals (which does not mean they know how to care for them).

This website has a pretty good set of profiles on the most common, and some of the rare fish in the hobby. You can find the link to the profiles on the blue bar at the top of the page, second one from the left.

You can also link to pages in the profile into your forum posts by typing out their name as they are listed in the profile, for example Common Molly. As explained in there, they should be in a 24" tank minimum, but a 36" tank is better.
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post #5 of 5 Old 07-25-2012, 11:18 AM
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Agree. The advice from stores is not always reliable.

BTW, tweet0302, we have fish and plant profiles, under the second tab from the left in the blue bar across the top of the page. Info in each includes minimum tank sizes, numbers of the species for shoaling fish, water parameters, etc.

And, welcome to Tropical Fish Keeping forum.


Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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