Ancistrus ID please?... And they spawned. :-)

Did you know fantastic help is an anagram of Planet Catfish? This forum is for those of you with pictures of your catfish who are looking for help identifying them. There are many here to help and a firm ID is the first step towards keeping your catfish in the best conditions.
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bekateen
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Thu Aug 02, 2018 6:07 pm

About half or less of the eggs failed, but the rest are hatching yesterday and today. In spite of the lossed eggs, this will be a bigger cohort of fry than the last spawn.
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Sat Aug 04, 2018 9:59 pm

\:d/ There's going to be well over 100 babies here, maybe close to 150.

Cheers, Eric
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bekateen
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Mon Dec 10, 2018 6:33 am

UPDATE: Since I first got these Ancistrus sp`rio_ucayali`, they've spawned at least 10 times. My first spawn resulted in 2 fry, (but only 1 developed to subadult size). On the third or fourth spawn, I got about 45 fry to hatch and develop. A few spawns later, I got about 140-145 fry from a single spawn... All the other spawns (all large spawns) either failed completely or only a few (less than 10) fry hatched... Most spawns failed completely, not by fungusing but just failing to develop (the eggs would just turn opaque and then disintegrate).

Someone suggested that my temperature (80-82F) was cooking the eggs, so I lowered the temp to 76F. Since then I've had two spawns: The first spawn at this new temperature was taken from dad on day 1 and raised in a Cobalt egg tumbler. The eggs started to develop but didn't hatch (none). This week there was another spawn. I left it with dad to fan the eggs. No failed eggs I could see (says Yoda :)) ) (I mean none turned opaque)... At least 150 fry hatched! At this cooler temperature, time to hatch extended from 3 days (at 82F) to 5 days (@76F). The significance of this is that I've ALWAYS seen at least some eggs (minimum 20-25%) fail and turn opaque. This time I saw NONE! Dang, I'm going to try this again! Maybe cooler temperature and dad fanning is the secret to success.

Hands clasped and fingers crossed!
Cheers, Eric
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Mon Dec 10, 2018 6:35 am

P.S., this is occurring all still in a 15 gallons tank. I've got 13x 5" SL adults and close to 100 fry in this tank. The negative impacts of overcrowding are minimized by frequent (2x weekly) 70%-80% water changes.
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Thu Dec 13, 2018 7:37 am

\:d/ Developing nicely!
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Thu Feb 07, 2019 7:18 pm

Just sharing - a nicely posed adult female, estimated SL about 10cm.
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Re: Ancistrus ID please?... And they spawned. :-)

Post by Jobro » Fri Feb 08, 2019 9:10 am

Nice to see many striving fry :D
How are they doing now?

82°F is still pretty low temperature for it's habitat. Wouldn't expect that to be a major problem. If you had enough successfull spawns at this temperature I would love to see a control experiment on higher temps again.
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bekateen
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Fri Feb 08, 2019 9:20 am

These fry are doing well, but I suspect I've lost a number for various reasons. I let them go into the parent tank relatively early in their development (maybe a week or two after hatching). Normally, I leave fry in a fry basket for up to 3 months. But there were other issues at play in my life, so I needed to let them go early. I haven't torn down the tank since then to count the remaining fry, but at any given moment it doesn't seem like enough fry are there - maybe they're just hiding well. :-D

As for raising the temp again (from 76F back up to 82F), that will happen naturally this spring as temps rise again. Unheated, the temp will easily exceed 80F and may even hit 85F. We'll see what happens this Spring/Summer.

Cheers, Eric
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Tue May 14, 2019 5:29 am

Fun picture of a mature male staring me down.

Cheers, Eric
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Sat Jun 08, 2019 9:00 pm

Had to clean out parents' tank today, after four spawns in one month. Somewhere around 400 babies swimming around (most in a growout tank and fry basket), in addition to about 30 2"-3" juvies (12 I took to LFS today). I need more tanks.

Sharing updated photos of a mature male and female Ancistrus sp. Rio Ucayali photographed in sunlight. The male is almost black with hints of red on pectoral spines and dorsal fin (not visible here); his silvery spots are pinpoint, irregularly edged, but crisply bounded. The female's orange-red fins show well; her iridescent body spots are larger and more diffuse. This is the same female that was all mottled orange as a juvenile on the day of purchase. She has always looked different from the other females when her colors are evident.

Cheers, Eric
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Sun Jun 09, 2019 5:13 am

Today when I took the photos of the adult male and female Ancistrus sp. Rio Ucayali, I was struck by how different their spots can look. Here are two photos of a subadult offspring after tank lights are off (one pic with flash, one without). You can see simultaneously both the smaller distinctly-edged, pinpoint silver spots of the adult male and the larger diffusely-edged irregular iridescent spots seen on the adult female. I'm surprised to see this because I expected them to be the same spots. Maybe not?
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Thu Jan 02, 2020 12:58 am

Aside: Back in June I got rid of all the parents and was growing out the fry to sell/trade. Some fry are still pretty small, but a few are adult sized, and one pair spawned around Dec 6th. Then today, this happened:

New Year's Day sexy action! One male, two females, all within a timespan of 3 hours!

Happy new year, Eric
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Female #1 enters cave. Female #2 waits.
Female #1 enters cave. Female #2 waits.
Male-female #1 sexy time. Female #2 waits.
Male-female #1 sexy time. Female #2 waits.
First spawn. Female #2 still waits.
First spawn. Female #2 still waits.
Female #2 enters cave.
Female #2 enters cave.
Female #2 in cave, sexy time  before laying eggs.
Female #2 in cave, sexy time before laying eggs.
Male with two egg masses, one under each pectoral.
Male with two egg masses, one under each pectoral.
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Thu Jan 02, 2020 3:07 am

Within hours of the second spawn, dad lost one of the egg masses. Into a hatchery fry basket it goes.

Dad still has the other egg mass.

Cheers, Eric
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bekateen
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Re: Ancistrus ID please?... And they spawned. :-)

Post by bekateen » Fri Jan 03, 2020 3:59 am

Here's a summary video of the double header spawn in my tank yesterday. These three parents are only about 6-8 months old. I hatched them in my tanks late last Spring or early in the Summer of 2019! That was fast!

Cheers, Eric

Ancistrus sp. Rio Ucayali: 1 male, 2 females, 2 spawns in 4 hours! New Year's Day, 2020

"So many catfishes, so little time... and space... and money." - I said this after visiting Pier Aquatics.
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