Stocking Advice Needed - 29 Gallon & 10 Gallon - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources

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post #11 of 23 Old 03-20-2012, 12:01 PM
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Originally Posted by Termato View Post
My friend has a 10 gallon tank with 3 black widow tetras and 2 serpae tetras and 1 otto (I told him to get more ottos) he likes tetras, If I give him one of my male mollies do you think it will do well in his tank? too over crowded? Just stay away from mollies in 10 gallon tanks?

Would it be best to give the fish to the store?
That tank in my opinion is a disaster waiting to occur. [And a 10g is too small for any molly except newborn fry.]

Shoaling fish (all characins, danio and barbs are shoaling fish, as are some others) must be in groups. Six is the accepted minimum for most species, but the more aggressive ones like Serpae and even Black Widow need more, 8+. There is insufficient space in a 10g for any of these. There is more info in the profiles of these two species.

Scientific studies have now proven beyond any doubt that maintaining shoaling fish in smaller groups is more likely to cause increased aggression. This happens most of the time. But another possible result is just the opposite--the fish are so stressed that they become overly and abnormally retiring, even to the point of refusing to eat and just wasting away. In both cases, the cause is the sheer frustration the fish "feels" when it is placed in what is a completely inappropriate environment. We can't change how fish are created and what they have evolved to require. They will be much more likely to be in better health if they are provided with what they need, in terms of space, water parameters, numbers, and the physical environment (light, wood, rock, plants, whatever).

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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post #12 of 23 Old 03-20-2012, 12:16 PM Thread Starter
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Originally Posted by Byron View Post
That tank in my opinion is a disaster waiting to occur. [And a 10g is too small for any molly except newborn fry.]

Shoaling fish (all characins, danio and barbs are shoaling fish, as are some others) must be in groups. Six is the accepted minimum for most species, but the more aggressive ones like Serpae and even Black Widow need more, 8+. There is insufficient space in a 10g for any of these. There is more info in the profiles of these two species.

Scientific studies have now proven beyond any doubt that maintaining shoaling fish in smaller groups is more likely to cause increased aggression. This happens most of the time. But another possible result is just the opposite--the fish are so stressed that they become overly and abnormally retiring, even to the point of refusing to eat and just wasting away. In both cases, the cause is the sheer frustration the fish "feels" when it is placed in what is a completely inappropriate environment. We can't change how fish are created and what they have evolved to require. They will be much more likely to be in better health if they are provided with what they need, in terms of space, water parameters, numbers, and the physical environment (light, wood, rock, plants, whatever).
Where is the thank button when you need it.

Here is what I have figured out so far from all the advice

Returning the 7 Black Widow Tetras today.
Moving the 2 Red Wag Platy Females to the 29 gallon.

After this I am going to possibly...

Move the Neons to the 10 gallon with the ottos. Move the Breeding Pair of mollies to the 29 Gallon. If I do this I will have to give away one of my two dominant male mollies

I do kind of want to keep the neons in the 29, although they will attach they fry when they are still small, I can give them enough cover?

I have too many mollies for the size and quantity of tanks I have so I will have to end up giving 1-2 or them away... :(
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post #13 of 23 Old 03-20-2012, 02:48 PM
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Originally Posted by Termato View Post
Where is the thank button when you need it.

Here is what I have figured out so far from all the advice

Returning the 7 Black Widow Tetras today.
Moving the 2 Red Wag Platy Females to the 29 gallon.

After this I am going to possibly...

Move the Neons to the 10 gallon with the ottos. Move the Breeding Pair of mollies to the 29 Gallon. If I do this I will have to give away one of my two dominant male mollies

I do kind of want to keep the neons in the 29, although they will attach they fry when they are still small, I can give them enough cover?

I have too many mollies for the size and quantity of tanks I have so I will have to end up giving 1-2 or them away... :(
Livebearer fry are a decent size, and with thick floating plants (I used to use Cabomba left floating, but any similar stem plants would work) some fry might recover. Of course, providing live food for the other fish is fine, you will have more fry than you likely want before long, and they will have to be in another tank as they grow out.

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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post #14 of 23 Old 03-20-2012, 05:25 PM Thread Starter
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Livebearer fry are a decent size, and with thick floating plants (I used to use Cabomba left floating, but any similar stem plants would work) some fry might recover. Of course, providing live food for the other fish is fine, you will have more fry than you likely want before long, and they will have to be in another tank as they grow out.
I have added a new variable to this equation. I unexpectedly found a 20 gallon tank with everything for $30 off of craigslist. Bought it.

So I now have the 10 gallon and 29 gallon set up. I need to clean this 20 and all the equipment, then I can set it up and start cycling it.

What would you recommend now that I have a third tank, although it is still not big enough for mollies?

(edit...took out black widow comment...still going to return them because I think it will be best for them and all the rest of the fish).

Last edited by Termato; 03-20-2012 at 05:32 PM.
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post #15 of 23 Old 03-20-2012, 06:26 PM
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I have added a new variable to this equation. I unexpectedly found a 20 gallon tank with everything for $30 off of craigslist. Bought it.

So I now have the 10 gallon and 29 gallon set up. I need to clean this 20 and all the equipment, then I can set it up and start cycling it.

What would you recommend now that I have a third tank, although it is still not big enough for mollies?

(edit...took out black widow comment...still going to return them because I think it will be best for them and all the rest of the fish).
That's good. The 20g will do for the sailfins, they're not so large.

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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post #16 of 23 Old 03-20-2012, 07:13 PM Thread Starter
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A molly needs at least a 20g (Sailfin type), or a 3-foot tank (common or black molly). A 10g is not sufficient space for any molly alone, let alone more than one, except of course for newborn fry for a period.
How many? Is two fine?
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post #17 of 23 Old 03-20-2012, 07:52 PM
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Awww, 'Mato! I feel for you! Congrats on the new tank, kudos for trying to do the right thing for all of your little fishy friends! It's a tough thing to work through, and giving up fish is never fun. :( Wish I had something to offer you beyond what's already been said, aside from good luck!
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post #18 of 23 Old 03-20-2012, 08:03 PM
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How many? Is two fine?
I would think this is OK. Substrate fish could also be added.

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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post #19 of 23 Old 03-20-2012, 08:05 PM Thread Starter
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Do any of you know how to clean a dirty tank. I just bought the 20 gallon and most of the equipment and most of the tank is dirty with white (i guess calcium).

How should I go about cleaning it? Should I use any soap? I am going to wait to hear back before I even touch that tank.

Thanks to everyone who has helped and those who will.

Yea ches, I feel the 20 gallon is going to be the savior tank! lol

---

Thanks Byron. Yea I was thinking of keeping the breeding couple in the 20 and move the bigger fry to the 10 until I want to give them away.
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post #20 of 23 Old 03-20-2012, 08:18 PM
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@Termato: avoid using soap. Soaking in vinegar will reduce the hard water stains. It will be tedious but works.
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