Fish For 20" long (10 gallon) tank?
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Fish For 20" long (10 gallon) tank?

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Fish For 20" long (10 gallon) tank?
Old 05-10-2012, 05:24 AM   #1
 
Question Fish For 20" long (10 gallon) tank?

Hi. I'm looking for fish for my 20" long 10 gallon tank, except for guppies and Engler's Livebearers. I guess that counts out Characins too because they need 24" and travel in big schools. I plan to understock this tank.

I thought it would be a real challenge to maintain a planted 10 gallon, but for now the challenge is to find a fish that can tolerate 20 inches of length. I have been looking at fish in the Tropical Fish Profiles, and just found one that meets the requirements - Otoclinclus - but obviously I will need to find a couple more denizens of my aquarium. Any suggestions?

Thanks!
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Old 05-10-2012, 05:45 AM   #2
 
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Do you know your water pH and hardness?
There are many dwarf fish- but counting out livebearers they are pretty much all soft water fish.
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Old 05-10-2012, 06:01 AM   #3
 
Hi Olympia,

I heard a while back that the hardness of my water is very low, i.e., soft. Now, they buffer up the water to raise the pH. pH in my tank is 7.3,
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Old 05-10-2012, 06:04 AM   #4
 
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Hmm, go to pet shop and get it tested. Or call your water supply place and ask them for numbers.
Celestial pearl danios are soft water fish than can do well in an over 7 pH. There are also a few other similar fish.
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Old 05-10-2012, 06:31 AM   #5
 
Alkalinity Per MWRA

Hi Olympia,

The alkalinity of water coming out of my tap is 40 mg/l. pH is around 9.3.
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Old 05-10-2012, 07:05 AM   #6
 
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9.3!? That's crazy. That's like what salt water needs.
I don't know anymore. A lot of large rainbowfish could handle that, maybe some smaller types.
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Old 05-10-2012, 07:13 AM   #7
 
Well, I guess either there's no CO2 in that water and it stabilizes when it gets into my tank, or I will have to loweer it by a lot to get to pH 7.3. I was just considering spaghnum moss...
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Old 05-10-2012, 06:59 PM   #8
 
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This issue of the GH, KH and pH was dealt with in your other thread [you know that, this is just for the info of Olympia and others reading] so this is a situation for soft water fish.

And there are many options among the Cyprinids, a few characins, some catfish, the smaller rainbowfish, some Badids, a few anabantids, killifish... you've the whole tropical region across the planet to choose from.

So many with a 10g have hard water that severely limits options. People like us with very soft water are in this sense lucky.

Byron.
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Old 05-10-2012, 07:14 PM   #9
 
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Was the 9.3 pH a typo?
You do have a lot of options with soft water. Were you looking for one species, two species, a species and a centerpiece fish?
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Old 05-10-2012, 07:23 PM   #10
 
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Quote:
Originally Posted by Olympia View Post
Was the 9.3 pH a typo?
You do have a lot of options with soft water. Were you looking for one species, two species, a species and a centerpiece fish?
No typo, his water supply uses Alkalinity to raise the pH to 9.3 to avoid corrosion in water pipes, appliances, water tanks, etc from the soft acidic water. I have something of a similar situation here in Vancouver. Our water is even softer, at about 0.5 dGH with similar KH, and a pH around 5 or perhaps lower. So since 2001 they have been adding soda ash (sodium carbonate) and the pH out of the tap varies but mine is 7.0 to 7.2 with near-zero GH and KH. So in the aquarium it lowers fairly quickly. My tanks run around pH 5 except for two that I deliberately buffer with aragonite to keep the pH at 6.4 and 6.8 respectively.
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