Hoplosternum Punctatum Spawn!

All posts regarding the care and breeding of these catfishes from South America.
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MissNoodle
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

Some clearer photos today, collected a couple for a close look at development. Fed frozen daphnia today and they really liked it
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MissNoodle
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

Theyre looking like mini hoplos more and more
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MissNoodle
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

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Getting bigger!
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Re: Hoplosternum Punctatum Spawn!

Post by Bas Pels »

cute

The people in Ontario are lucky - one day you will sell them and that will be their opportunity
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bekateen
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Re: Hoplosternum Punctatum Spawn!

Post by bekateen »

They look great!
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Re: Hoplosternum Punctatum Spawn!

Post by fishguy1978 »

Very cool.
The harbinger of doom to the wicked but the fragrance of life for the hopeless. Napalm
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

Ive got a second spawn today.

Again, on a floating anubias leaf, and a cold front moved through last night. Seems to be the consistent factor.
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bekateen
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Re: Hoplosternum Punctatum Spawn!

Post by bekateen »

Congratulations!
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Re: Hoplosternum Punctatum Spawn!

Post by fishguy1978 »

That's so cool
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

Moved them to an aerated container with tannins and RO water
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

Not the happiest of updates.

The 2nd batch totally fungused over, despite alder cones and almond leaves.

Had a lot of smaller fry fail to thrive of the first batch, only one really grew, and ive lost all but that one large sibling.

Hes been moved to one of my smaller community tanks now to finish growing until he's large enough to join his parents.
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Re: Hoplosternum Punctatum Spawn!

Post by Woodh »

Very inspiring thread! :)
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

Ive had 2 spawns this last week :) have some babies hatched and waiting on the others to hatch too.

And the other guy has grown much larger, he's almost large enough to move to the adult tank just needs another half inch to go before then
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Re: Hoplosternum Punctatum Spawn!

Post by bekateen »

Two spawns in one week? That's terrific! Do you think there was a specific trigger, or are they just busy as can be now that they've discovered what sex is? :))

Cheers,
Eric
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

bekateen wrote: Sun Jun 27, 2021 10:31 pm Two spawns in one week? That's terrific! Do you think there was a specific trigger, or are they just busy as can be now that they've discovered what sex is? :))

Cheers,
Eric
Ive noticed every spawn thus far has either been right along with a pretty intensive rain or storm event. That's been the consistent denominator each time. 3 times has been on a floating anubias leaf that I left in the tank, but the 4th spawn has been on a water lettuce leaf due to no anubias leaf available.

Group has 2 females, so assuming both spawns the same week were from separate mothers.
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

I will say though, their eggs are super prone to fungus! I lost spawn #2 all to fungus. Spawn 3 had about 75% eggs fungused, and spawn 4 is about 25% fungus so far, despite tannins.

I am wanting to get me some m blue to see if it makes a difference with them.
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Re: Hoplosternum Punctatum Spawn!

Post by bekateen »

The fungus may be a pH thing or oxygenation. Just spit-balling though.

Good luck,
Eric
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Re: Hoplosternum Punctatum Spawn!

Post by Bas Pels »

MissNoodle wrote: Mon Jun 28, 2021 5:12 am I am wanting to get me some m blue to see if it makes a difference with them.
Be carefull with the stuff. As far as I know, catfish are rather sensitive to it themselves.

further it is suspected of promoting cancer in humans. If I remember correctly you have a son who sometimes has his hands in a tank. This is a reason to prevent this in a tank dosed with this stuff.
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

bekateen wrote: Mon Jun 28, 2021 6:16 am The fungus may be a pH thing or oxygenation. Just spit-balling though.

Good luck,
Eric
I have them in a container of RO water with a pH regulator to keep pH at 7 same as my tap so it's not a major change when they are transitioned back to my tap once older. Air stone on super high until they start hatching then it's lowered so it doesn't blow the fry around.
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Re: Hoplosternum Punctatum Spawn!

Post by MissNoodle »

Bas Pels wrote: Mon Jun 28, 2021 7:32 am
MissNoodle wrote: Mon Jun 28, 2021 5:12 am I am wanting to get me some m blue to see if it makes a difference with them.
Be carefull with the stuff. As far as I know, catfish are rather sensitive to it themselves.

further it is suspected of promoting cancer in humans. If I remember correctly you have a son who sometimes has his hands in a tank. This is a reason to prevent this in a tank dosed with this stuff.
My understanding with the m blue is you change out the water with it from the egg container the day before the eggs are due to hatch, at least how people use it with cories.

Going by a certain well known corydoras breeder, there's speculation that species that come from clear water or white water have better results using m blue rather than tannins, and given the tannins are not yielding much results for me with these guys, I'd like to try it out and see if there's a difference.

Of course, stuff can stay the heck off my hands, and since that incident with the kid he's not touched the tanks (he got grounded big time for when he did). Of course I'll be sure to remind him with using chemical treatments too. Just to be safe so he knows if he touches it, it could hurt him too.
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