55 Gallon River Setup

Wow, great researching!! I admit I didn't read everything (football game). How do they take gender differences into consideration? Seems like females might have larger scales or broken lateral line with size & egg carrying in some ways...but maybe not. I'll read more later...

Thanks for the color dots & scale (size) of, well, scales. You haven't done that for me in a while, usually circling with find the fry or eggs pics.

Can I just say I hate the half rotten specimens?
 
Wow, great researching!! I admit I didn't read everything (football game). How do they take gender differences into consideration? Seems like females might have larger scales or broken lateral line with size & egg carrying in some ways...but maybe not. I'll read more later...

Thanks for the color dots & scale (size) of, well, scales. You haven't done that for me in a while, usually circling with find the fry or eggs pics.

Can I just say I hate the half rotten specimens?
I'm not a fan of preserved specimens, but I understand the scientific value of having physical specimens on hand.

Got a better doodle showing what was pointed out to me regarding these being Moenkhausia forestii

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Faint humeral spot
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Green is the partial broken lateral line, stops halfway through the body. Red are 5 scales above it, and blue is the 4 underneath. What I thought was #5 on the lower end was the belly and didn't count 🙃
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The study

It was someone else who pointed this out as I overlooked the lateral line being incomplete.

I could also take the frozen body of one of the skinny ones in the freezer that was killed in QT and look at it's dental pattern under microscope if I really wanted to. But I'm fairly certain forestii is correct in this case. (I bury my fish, but it's frozen outside, so have to wait until the ground thaws)

Meaning they're full grown pretty much right now (1.4"). On one hand, was hoping for a much larger fish (red eyes supposed to get 2.8-3"), on the other, I found something cool, AND comes from the Parana, like corydoras paleatus! Most temperature compatible of the possibilities essentially, so I really cannot complain.

Their colours are really coming through today. They're quite lovely.
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The males have a darker red to them, even on the body there's a red tint to the top of their back.
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And some bonus pics
Pleco looks like she came to the wrong meeting of fish and isn't sure she's supposed to be there lol
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Baby cories
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They're growing so fast now, they've made it to almost as large as the tetras now. Which I know is still small, but considering these have grown since eggs, it's always fun to watch them grow.
 
Around 1-2pm every day in the winter the tank gets a little bit of sunshine.

These guys in the natural light 👌
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Are the blue sheen & the green sheen the same species?...WOW!! OK, I'm just teasing you without scale counting, etc.

Ye-ow, they look fabulous! But I still haven't read up yet, now it's my football team playing...& losing... too sad to play right now...
 
Hahaha yeah the colour differences is just angle and lighting. They're rather iridescent in the sunlight. The neon colored line is cool though
 
Gee whiz, spending 3 days watching football & I had a bunch of stuff to do before in depth reading. I am noticing different amounts of lateral line definition. Maybe lighting or the gender "girlie bend?" or whatever it may be called. But I'm not sure of genders in every case, but some I can tell...
 
Gee whiz, spending 3 days watching football & I had a bunch of stuff to do before in depth reading. I am noticing different amounts of lateral line definition. Maybe lighting or the gender "girlie bend?" or whatever it may be called. But I'm not sure of genders in every case, but some I can tell...
Lateral lines of each fish stops just at the dorsal fin. It doesn't extend further.

Here's a lady showing her incomplete lateral line.
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I had to read some stuff more than once, it gets confusing telling which species is the 1 under discusions...& not all the others compared to it. I noticed 1 chart list some species by TL (total length nose to end of tail) & some SL (standard length = no tail). It takes me some extra thinking to translate to meteric too, lol.

I also have trouble with the dark speckling (freckling, tiny dots, pores, whatever they were called) just above the lateral line. I'm not sure I get it...o_O but I'm not doing any more today my brain is on overload.

On a lighter note, it's very cool your tetras are from where the paleatus are found.
 
I had to read some stuff more than once, it gets confusing telling which species is the 1 under discusions...& not all the others compared to it. I noticed 1 chart list some species by TL (total length nose to end of tail) & some SL (standard length = no tail). It takes me some extra thinking to translate to meteric too, lol.

I also have trouble with the dark speckling (freckling, tiny dots, pores, whatever they were called) just above the lateral line. I'm not sure I get it...o_O but I'm not doing any more today my brain is on overload.

On a lighter note, it's very cool your tetras are from where the paleatus are found.
Now if only the chaetostoma were from the same area haha.

Unfortunately the one who was not faring well has passed away, I found him yesterday morning. Refused to eat anything, and despite there being ample algae growth, biofilm, and diatoms, he was refusing. I feel he may have had a gut bacterial issue, like many freshly imported otocinclus tend to have happen, which isn't easy to repair once damage is done as they're unable to digest anything properly. The ladies are doing just fine, fattening up, and are now eagerly coming out during feeding time with my original male. I feel that they will thrive just fine. Just feel bad the 2nd male did not. Such is the risk with wild caught algae eating fish. They have sensitive digestive tracts.


But anyways, more positive stuff.
Fed them some frozen mysis shrimp yesterday, they've taken to frozen really well too.
 
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