Rineloricaria eigenmanni spawn

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Rineloricaria eigenmanni spawn

Post by bekateen »

Moderator note: This spawning thread was split off from another thread on the identification of this species: Rineloricaria eigenmanni or parva?

Do female Rineloricaria eigenmanni whiptails develop pectoral odontodes? If not, funny thing... the fish with the darkest marks which I thought was male is the only one without them. The other two with lighter markings have them. The fish shown below is the lightest colored in the photos above showing the three side by side. Originally, I thought this light fish was the only female, but now it has odontodes. So far, this light fish has only pectoral spine and ray odontodes. The medium colored fish has odontodes on its pectoral spine and rays, and also on top of its head, near or on the supraoccipital.

Cheers, Eric
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Who has odontodes
Who has odontodes
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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

Got three more Rineloricaria eigenmanni to build my group to six. These are smaller than the other three are today, so I'll have to wait to sex them. Time will tell.

Cheers, Eric
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Re: Rineloricaria eigenmanni or parva?

Post by molikotigo »

I guess you need to grow them out and see what they do. They are pretty

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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

:-BD Cheers
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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

They spawned! :-) \:d/

The male is definitely one of the newer fish I got (only one month ago), rather than either of the two large husky males I've had from the beginning. I believe the female is also one of the new fish, as the spawning male and a female were already together in the cave when I went to sleep last night (although she hadn't yet laid any eggs), but my big female from the first purchase was loose in the tank at that time. That said, I cannot guarantee that the females didn't change places while I slept (I don't expect it to have happened, but who knows?)

At the same time as the breeding pair was inside this small (just over 1" diameter) bamboo pipe, there was (and still is) also a second male (one of my older big males) in a neighboring clay pipe for the last couple of days; so far, I haven't seen a female in there with him, but maybe, just maybe, if the first pair was pumping out some spawning pheromones in the water last night when they spawned, maybe it will trigger another female to enter the second clay pipe and spawn with this bigger male. I don't want to be greedy, but that would be awesome! ;-)

Cheers, Eric

P.S., I'm reading the other BLOGs on this species. They say it takes 7-10 days for the eggs to hatch! This long wait will be torturous on my anticipation! :))
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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

Tonight I removed the entire pipe from the tank and isolated it in a 2 gal/8L tank with its own air pump and sponge filter. I redirected the air and water current to travel up the pipe (but air against the roof of the pipe, not the floor where the eggs are). I also put an empty pipe into the parents' tank. Let's see if the whips move back in and spawn again. Fingers crossed.

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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

Differences in base color among my R. eigenmanni.
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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

None of the eggs hatched from the first spawn. They fungused late in incubation within the 2 gal. incubation tank. A second spawn occurred on March 5th. I left the eggs with dad in the main community tank. On March 11 (day 6 of incubation, the dad was gone and most of the eggs seemed to have hatched and died immediately. But two eggs remained in the bamboo pipe. I moved the pipe to a fry basket, and today I found a fry. This is my first R. eigenmanni fry hatched yesterday or the day before, on day 7 or 8 of incubation. Unless some fry also hatched and survived in the tank, this is my only fry from this spawn.

Cheers, Eric
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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

2020-March-20. Third spawn overnight last night. :YMPARTY: #CoronavirusSexyTime!
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Re: Rineloricaria eigenmanni or parva?

Post by LittleFella »

bekateen wrote:
Fri Mar 20, 2020 2:12 pm
2020-March-20. Third spawn overnight last night. :YMPARTY: #CoronavirusSexyTime!
Wish you luck with the third spawn! :YMPEACE:
https://fishtanks.expert/ - Fish Tanks Expert b-)

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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

Thanks! I did find one survivor from the second spawn who is doing well. I'd like to get it some brothers and sisters too! :-)

Cheers, Eric
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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

Fourth spawn today, occurred between 9AM and noon. Parents abandoned the pipe while I was doing a water change (I did not know they had spawned). This seems like a sloppy spawn with eggs more scattered than usual in pipe. I wonder if this was a new couple spawning. I haven't had good hatching so far (all the eggs from spawn #3 fungused), I used a soft plastic pipette and a dental toothpick to work each egg out individually. I know one egg burst. I recovered 103 intact eggs. Let's see how they develop in a fry basket. #CoronavirusSexyTime
  • 21 February: Spawn #1
  • 05 March: Spawn#2 (13 day interval)
  • 20 March: Spawn #3 (15 day interval)
  • 28 March: Spawn #4 (8 day interval)
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Screenshot_20200328-181313_Photos~2.jpg
Screenshot_20200328-181346_Photos~2.jpg
20200328_182215.jpg
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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

Arrrggg! Came home today to find three small Ancistrus have breached the egg basket and there are far fewer eggs. Dang! I removed the BNs and fortified the attachment of the basket to avoid the same fate repeated. Let's hope and pray the remaining eggs develop.
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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

Fifth spawn today, occurred between 9AM and 8PM (while I was at work). This dad seems well seated on his eggs, so I'm going to leave them alone for now.
#CoronavirusSexyTime
  • 21 February: Spawn #1
  • 05 March: Spawn#2 (13 day interval)
  • 20 March: Spawn #3 (15 day interval)
  • 28 March: Spawn #4 (8 day interval)
  • 02 April: Spawn #5 (5 day interval)
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Spawn #5: 02 April, 2020.
Spawn #5: 02 April, 2020.
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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

While the dad from the most recent spawn continues to brood his eggs, another spawn is occurring right now (8:00am) in a nearby pipe. This spawn is really sloppy, with many eggs scattered outside the mouth of the pipe. I suspect the pair didn't move deep enough into the pipe to secure the eggs as they are laid. Oh well, let's hope for the best! #CoronavirusSexyTime
  • 21 February: Spawn #1
  • 05 March: Spawn#2 (13 day interval)
  • 20 March: Spawn #3 (15 day interval)
  • 28 March: Spawn #4 (8 day interval)
  • 02 April: Spawn #5 (5 day interval)
  • 06 April: Spawn #6 (4 day interval)
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20200406_080515~2.jpg
20200406_082925~2.jpg
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20200406_083829~2.jpg
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Re: Rineloricaria eigenmanni or parva?

Post by bekateen »

Came home from work tonight to find this: Even more eggs were thrown around as the day went on. In fact, very few (30-50) eggs are in the cave. :))
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Re: Rineloricaria eigenmanni spawn

Post by bekateen »

Finally, a successful Rineloricaria eigenmanni hatch. Regarding the 02-April spawn, I left dad in the cave in the tank. On 10-April, I moved the entire pipe, with dad on the eggs, into a fry basket positioned in front of the output from a powerhead. Over the course of 10-April to 12-April, the eggs hatched. This morning I removed the pipe from the basket and released dad back into the tank. Unfortunately, I did not notice at least 10 babies sucking onto dad or under him in the pipe, so when I released dad, I accidentally released at least 10 fry. That said, I think there are still over 100 (no, revised to over 125) fry in the basket. Yay!
bekateen wrote:
Fri Feb 21, 2020 7:31 pm
P.S., I'm reading the other BLOGs on this species. They say it takes 7-10 days for the eggs to hatch! This long wait will be torturous on my anticipation! :))
The hatching of this spawn explains most of the range in the BLOGs - these eggs started hatching on day 8 and finished hatching on day 10.

Also visible in the basket are the sand-coated eggs recovered from the 06-April spawn that was so messy. A few of those eggs have fungused, but many are still developing. And back in the tank, that 06-April dad continues to sit on the few eggs he and his Mrs. managed to lay in the cave.

On a separate subject, I noticed that the 02-April dad's color changed dramatically over the 10 days while he incubated the eggs. I've shown elsewhere (HERE) that my adults have either a yellow-tan base color or a blue-gray base color. Well, this dad, after 10 days of incubating eggs, is a faint red color. Spectacular change. I wish he stayed that color, but I imagine he will revert back to tan.

Cheers, Eric
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Screenshot_20200412-094103_Photos~2.jpg
Fry accidentally released with dad.
Fry accidentally released with dad.
Dad within moments of release. Body color red-tinted. A normal-colored adult is behind him.
Dad within moments of release. Body color red-tinted. A normal-colored adult is behind him.
Variation in normal colors
Variation in normal colors
Normal colored adult
Normal colored adult
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Re: Rineloricaria eigenmanni spawn

Post by bekateen »

Oldest single fry reached one month old today, 20mm SL.

Also today, I removed the tube with spawn #6 and I used a bamboo shish kabob skewer to carefully detach the eggs dad was still guarding. It is day 8 of their incubation. I transferred the eggs to the basket housing the 125+ hatchlings from spawn #5 and also the dozens of still-developing, sand-coated eggs I collected after the mess of spawn #6. These should hatch in the next two days.
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Re: Rineloricaria eigenmanni spawn

Post by bekateen »

Those eggs from sloppy spawn #6 started hatching today. With their green yolky bellies, they stand out from the spawn #5 fry which hatched four days ago.

Cheers, Eric
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Re: Rineloricaria eigenmanni spawn

Post by bekateen »

Spawn #7 occurring this morning. The cold thing is this: the female started with one male in one pipe, then switched to another pipe (without spawning in the first) with a different male and now she's laying her eggs. That first male... poor soul is he. :)) #CoronavirusSexyTime
  • 21 February: Spawn #1
  • 05 March: Spawn#2 (13 day interval)
  • 20 March: Spawn #3 (15 day interval)
  • 28 March: Spawn #4 (8 day interval)
  • 02 April: Spawn #5 (5 day interval, or 13 days if this was the female from spawn #3)
  • 06 April: Spawn #6 (4 day interval, or 12 days if this was the female from spawn #4)
  • 18 April: Spawn #7 (12 day interval, or 16 days if this was the female from spawn #5)
I'm thinking spawns #1, 2, 3 & 5 are the same female (13, 15, & 13 day intervals). Spawns # 4 & 6 are a different female (12 day interval), and spawn #7 could be either female (either 12 or 16 day interval, depending on the female). All that said, I do have three females. Except for the darkly marked original female, I can't tell them apart. If all three are spawning, my schedule goes out the window! 8-}
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