Tank no.2: 10g planted

Fishmanic said:

@Sparx
So does hubby visit our forums. If not, maybe get him to join too. Maybe he could register as Sparx2.

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He doesn’t I’m afraid. He’s not a forum kind of person. Anytime he spends online he’d rather be either scrolling through social media reels or gaming and he just relies on me do any research required

So today was the day to introduce the new critters into the new tank

Firstly we have the little Fire Red Cherry shrimpy-poos. There are 13 of them in total and all different sizes. They are the FRCS clan.




We also picked up a couple of very pretty *False* Julii Corydoras.
Edit: Their common name is actually the Three Lined Cory.



And lastly the new King of the Tank..



According to hubby, his name is Deadpool..

We’ve dimmed the lights to let them settle in. Hopefully they will all get acquainted and get along nicely

Sparx said:

We also picked up a couple of very pretty Julie Corydoras.

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Any chance of going back for a few more? Cories like to be kept in groups. 6 would do but 10 would be better.

Many shops label these cories as julii but they're really trilineatus. Yours look like trilineatus, though @CassCats will know better than me. And they're not cories any more, both julii and trilineatus are now Hoplisoma.


Edit - just realised this is a 10 gallon tank, which is not big enough for 10 Hoplisoma trilineatus

Essjay has it right, both on species, new name, and tank size not being good for the species you chose.

Your better choice is hoplisoma habrosus (corydoras habrosus), gastrodermus pygmaeus (corydoras pygmaeus), or gastrodermus hastatus (corydoras hastatus) for a 10 gallon, but honestly don't suggest mixing with bettas because bettas are prone to health problems such as dropsy and swim bladder disorders that are increasingly risked with overeating--and most bettas kept with other fish have access to extra food that isn't good for them.


Or, upgrade to a 15g or 20g and move the H. Trilineatum to that without the betta trilineatum can be housed as a group of 6 in a standard 15 gallon, but a 20 gallon long is even better

Essjay said:

Any chance of going back for a few more? Cories like to be kept in groups. 6 would do but 10 would be better.

Many shops label these cories as julii but they're really trilineatus. Yours look like trilineatus, though @CassCats will know better than me. And they're not cories any more, both julii and trilineatus are now Hoplisoma.


Edit - just realised this is a 10 gallon tank, which is not big enough for 10 Hoplisoma trilineatus

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The LFS had them labelled as *False* Julii Corydoras, which to be fair I probably should have looked up before hubby bought them, they are better in larger groups but the shop only had these two left so we couldn’t have bought more even if we wanted to.

'False julii' is how a lot of people refer to them. It would save confusion if shops called them by their real name

CassCats said:

Essjay has it right, both on species, new name, and tank size not being good for the species you chose.

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I researched on seriouslyfish.com and it does say that these Corys need minimum 10g so I thought getting these two would be ok.

CassCats said:

bettas are prone to health problems such as dropsy and swim bladder disorders that are increasingly risked with overeating--and most bettas kept with other fish have access to extra food that isn't good for them.

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I know Bettas are prone to over feeding issues which is why we will be careful on how much food we are putting into the tank.

CassCats said:

Or, upgrade to a 15g or 20g and move the H. Trilineatum to that without the betta trilineatum can be housed as a group of 6 in a standard 15 gallon, but a 20 gallon long is even better

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Unfortunately we don’t have the space for anymore tanks at the moment but I will bear this in mind for future

Some of the profiles on Seriously Fish are out of date. It is now recognised that cories other than the dwarf species need bigger tanks.
SF's profile on Hoplisoma trilineatus also says "A group of at least six is best" but again this is out of date with 10 or more being the recommended number for shoaling fish.

I tried to look them up on planet catfish but the site is down at the moment.
Corydorasworld is another site specialising in cories, but you have to register to access the site.

Sparx said:

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FOTM? hint hint

MattW said:

FOTM? hint hint

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We will see

In the very influential ancient texts of fishkeeping, (1950s books) there was one, which I found in my grandfather' shed, that identified all spotted Corys as julii. It was a mistake of the times, like calling P pulcher the kribensis. It stayed on as a relic of our science-disliking trade name habit, and juliis were sold everywhere, even though the the fish that really had that name was rare, and not in the hobby at the time. Then, as the trade woke up to the problem of selling 3 or 4 species under one name, rather than use the real names they came up with false julii.

I always imagine a party scene where I say:
"Hi Fred, how are you doing?"
"Fine, but Fred's my brother. I'm Louis."
"Right False Fred. Nice weather today."

The hobby is weird.

The rule of ten Corys (that's now the trade name for them) is sensible and logical, but it won't be respected. They are too expensive in many markets. If you look at them in the wild, they form little groups. What Byron argued for was interesting, and valid, but it was based on a fairly arbitrary number in one study. My reading is ten wasn't the real number, but was a convenient choice. So is six. Ten is better. Twenty is fantastic. As long as you don't get one.

Just a little update on hubbys tank. We took on board what you guys said about corys living in a group so we added a few more in last weekend. Despite them being different species of Cory, they all group together which is nice to see. We’ve talked about eventually transferring them to the 30g once they get a little bigger.
Deadpool has shown no aggression whatsoever, he just ignores them which is another bonus.
We’ve also added more plants to the tank, and now we rarely see any of the shrimp
Also an airstone was installed and the corys seem to like to play in the bubbles