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Thread: Breeding Bristlenose
12-21-2013, 05:02 PM #1
This is the little story of how I was surprised by the arrival of several BN fry.
I was recently forced to move all of my fish from one aquarium to another in the space of a few hours. The reason for this is that quite simply the other aquarium cracked and all hell broke loose.
We prioritized the move, of course, and were able to save all but one Glowlight. I then moved all the gravel, plants and rocks.
Over the course of the next day I was fascinated by the behaviour of the male BN; he was excavating a cave under one of the rocks. I have never had a BN do this before. If the truth is to be told I was tempted to try and stop him in case the rock was unstable. However, nature has been getting it right long before I was involved so I left him to do his thing.
The female joined him and they remained under there for about a day. Then suddenly she just swam away and stayed on the other side of the tank. I never thought to check if she was thinner or not.
A few more days passed and then I subsequently left on an 8 day holiday. My parents looked after the tank whilst I was gone. So I was reasonably confident that the fish would be okay.
So... I came back from my holiday this week and lo and behold; there were several tiny BN swimming in the tank!
Ancistrus fry r.jpgAncistrus female r.jpgAncistrus male r.jpg
Last edited by Richard Peche; 12-21-2013 at 05:12 PM.
12-21-2013, 05:09 PM #2
The above photos are the two parents and one of the fry. The fry are seemingly impossible to photograph.
So now that we have the background story there are several questions that I would like to ask...
1) How many eggs do they actually lay?
2) What is the usual number of fry that actually hatch? I only have 4 little ones :(
3) What factors play a role in the above number of hatch-lings?
4) How often will they spawn?
5) Are there any special foods that should be provided for them? I currently provide algae wafers, cucumber and baby marrow.
Any other suggestions and advice will be more than welcome.
12-21-2013, 05:12 PM #3
Congrats!! That is a great pic you have of the male!! Handsome fella..... Wonder if you'll have any albino babies?
12-21-2013, 05:14 PM #4
Last edited by Richard Peche; 12-21-2013 at 05:19 PM.
12-21-2013, 05:36 PM #5
Should be interesting to see what they'll look like as adults! I've had a pair of albino bristlenose breed frequently....but due to vigorous gravel vacuuming I really don't know how many eggs they had at a time. I eventually started taking the young to my lfs and recently took the mated pair to the same lfs because the load on my tank was too much. I kept one young one only. I didn't feed any differently when the young were in the tank....they seem to eat pretty much anything...and of course love algae... They really are beautiful fish!!
12-21-2013, 05:42 PM #6
Congrats on your babies!!! Mom & Dad are good looking parents!My 75 gal Journal & My Dual 29 gal Journal
75 gal - Smudge Spot Cories, Pristella Tetras, Scissortail & Red Tail Rasboras, Zebra Danios, Wild Caught BNP
29 gals - Left Tank - Diamond Tetras. Right Tank - Harlequin Rasboras, Peacock Gudgeons
Future 40 Long - Fiery Black Shiners, Panda Garra
"Life isn't about waiting for the storm to pass....it's about learning to dance in the rain"
12-21-2013, 05:48 PM #7
12-21-2013, 05:56 PM #8
Tank (1) r.jpg
This is his tank. He likes the big rock on the left.
12-21-2013, 07:39 PM #9
My pair are the same coloration you have - male albino and brown female. Their first spawn there were about 15-17 fry. The 2nd spawn about the same. Not one albino in the bunch! All look like mom, although they have white edging to the dorsal and tail fins that mom doesn't have. Not sure if she had it when younger.
12-21-2013, 07:52 PM #10
Female BN typically lay 50-100 eggs, depending on their size and maturity. Omce they start they usually keep spawning for several more rounds before taking a break. When they're tiny fry they don't have spines like the adults, and are easily eaten by other fish. They also need fed a bit more often when small, no fat reserves and the adults likely have the tank cleaned thoroughly of grazing material already.