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Stocking a 24 inch long 5 gallon?
August 31, 2016
7:38 am
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fae
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I've recently gotten ahold of a five gallon with very odd dimensions. I don't have a ruler handy, but it's approximately 24x8x12 inches.

I'm hoping to get a list of fish that wouldn't work in a normal five gallon, but would do well in this one due to the increased length (if there are any). I'm expecting it to be fish that aren't normally recommended for a five gallon due to activity level, but which still have low bioload. I'm aware of and willing to look for somewhat obscure fish.

Also, does this need to be a single-species tank besides inverts?

August 31, 2016
9:19 pm
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Byron Hosking
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If you could provide your source water parameters, namely GH, KH and pH, it will help.  Most of the suitable fish for smallish tanks will be wild caught with a higher preference for specific parameters.

Byron.

Byron Hosking, BMus, MA Vancouver, BC Canada
September 1, 2016
4:07 am
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fae
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Sure. I only have test strips right now so it'll be somewhat rough, but: pH is 7 (might be a bit lower, the water hasn't been airing out for very long), KH is 40 ppm, and GH is 30 ppm.

September 1, 2016
6:12 pm
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Byron Hosking
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That is very soft water, so you have more options as the majority of the "nano" type of fish are soft water.  You can also expect the pH to lower naturally once the biological system is established.

A 5g is still not much room, and your choices in species will not be much different from the standard 5 gallon, but with the length and width you have more space, if that makes sense, so the numbers can be a bit better.  Plants should do well in the shallower tank with less light, which again suits these fish.

Byron.

Byron Hosking, BMus, MA Vancouver, BC Canada
September 1, 2016
11:23 pm
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fae
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Yes, that makes sense. And I'm also wondering about some of the small schooling/shoaling fish which aren't recommended for the dimensions of a regular US 5 gallon but nevertheless have a low bioload. For example, I see a number of fish recommended for an 18x12" tank, which is roughly about the same amount of swimming space that I have, albeit with different dimensions. That leads me to wonder if they would be appropriate for my tank. I also wonder about rosy loaches and honey gouramis among others, though I'm pretty uncertain about them and have some serious doubts.

September 2, 2016
12:58 am
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Byron Hosking
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If the Rosy Loach is the species Petruichthys sp. 'rosy' as in our database:

http://www.seriouslyfish.com/s.....s-sp-rosy/

I would think this a good fish for this tank, in a group.  I have not come across this particular species, but it seems to be active (which you wanted).  This could be a lovely aquascape with sand, bits of wood, and plants including floating, for this beauty.

Honey Gourami I would say no.  There are some "dwarf" species suited though, like the pygmy sparkling gourami Trichopsis pumila, or the Eyespot Gourami Parasphaerichthys ocellatus.  I've had both of these.  My only reservation might be the activity level of the loaches, which I can't comment on as I've never had this one.  I have had Micronemacheilus cruciatus together with both of these gourami with no issues, though that was in a larger tank, but activity-wise I didn't notice issues.  The gourami would remain near the surface, so a nice combo from the aspect of filling the space.

Byron.

Byron Hosking, BMus, MA Vancouver, BC Canada
September 2, 2016
11:13 am
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fae
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Thank you so much. Comparing videos of both loaches, it looks like the rosies might be a bit more active, but they're small enough that I think they might make good dither fish. I do wonder how M. cruciatus would fare as well, though. I never heard of the species before today.

I'm not sure about eyespot gouramis, but I've seen both sparkling and chocolate gouramis available locally. I actually almost got a few sparkling gouramis at one point-- they're super neat little fish. I might give a Betta a shot first since I can get a 5 gallon setup for it pretty easily if it doesn't work out, but these guys are definitely a second choice :) Also wonder about T vittata as from what I know the species is less shy than T pumila, but I highly doubt they're different from honey gouramis here.

September 2, 2016
8:55 pm
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Byron Hosking
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T. vitatta is considerably larger, and like the profile here, I would suggest more space for this.

Chocolates (Sphaerichthys osphromenoides, or S. selatanensis or S. vaillanti) are approximately the same in size, need a small group, and having had the first two I would say larger quarters.  I presently have a group of seven in a 30g (113 litres) which is about minimum in my view.  I have seen a pair forming and expect spawning and some fry, as occurred the last time I had these about six years back.  The fourth species, S. acrostoma, is larger and needs even more room.  Males of all gourami are territorial, some species much worse than others naturally, but it is still a predominant trait that must be kept in mind when tank space is involved.  My chocolates exert their dominance particularly at feeding time, which is how I've spotted the pair; everyone else is harshly driven away by the male, then the two do their little dance.

Betta (male presumably, and the common B. splendens) is not a community fish, and needs to be in its own space.  A basic 5g is fine, but not with other fish.  I've no experience with the other wild species.

M. cruciatus needs more space in my view; I had a group of six in a 90cm leng 33g, but 75cm (30 inches) length is the minimum I would suggest.  A fairly quiet species for loaches, at least my group was.

Byron.

Byron Hosking, BMus, MA Vancouver, BC Canada
September 2, 2016
9:17 pm
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fae
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Ah, okay. Thank you again for all your help. :)

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