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Albino Bristlenose Eggs

winkle

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Coventry, West Mids, England
I noticed that my male albino bristlenose was suspiciously absent at feeding time yesterday morning and evening, so today I set about finding him. I did; he was hiding in a shell, acting as if he was trying to fan water deeper into the shell (his pelvic fins were going like the clappers).

Now I think the albino bristlenoses have tried to breed in the 180L community tank before; the male vanished for a while and then one morning at 6am I'm convinced that I saw a <1cm baby bristlenose on the front glass of the tank when I switched the livingroom lights on. I'd been surprised as all of my albino britslenoses are 3ins long or less, so I'd presumed them to be too young and too small still. None of the babies (if there ever were any) survived.

So this time I removed the shell (it holds water like a cup so it was easy to keep the eggs submerged at all times...if there really are eggs somewhere around that spiralling corner) and added it to the sectioned fry tank. When I came back to catch the male, he was searching around for his shell so I popped him in a tub and floated it in the fry tank, ready to re-unite him with his shell. Within 10mins he'd escaped the tub, found his shell and was back on duty, fanning water and re-scaping the substrate around the entrance.

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Excuse the very nosey juvie guppies; he's sharing with only 5 of the little guys and they usually hang out in the surface canopy of plant leaves but they were chasing the hand that feeds. I'm not sure how successful this will be for the bristlenose; having moved the eggs into a different tank. The water is the same temperature, comes from the same tap, is treated with the same tap-safe, has the same concentration of aquarium salt (0.1% as it keeps the sailfin mollies happier) but I'm sure there will be some variables between the two. At least if they do hatch in this tank there's some algae growing on the glass for them to graze, the juvie guppies aren't too interested in algae tablets so they won't have much competition and most of all, there's no big fish to hunt them. The 180L has got a peacock spiny eel and some boeseman's rainbowfish in it that are particuarly interested in little wriggly things.

I'm also aware that seashells don't make good ornaments; I'm slowly sneaking the horrible things out of the 180L one by one. Unfortunately everyone else in the house likes them.

My main questions are; if there are eggs in there, do I need to remove the male before they hatch or leave him with the fry for a while? If my bristlies are all 3ins or smaller, what sort of quantity of eggs are likely to have been laid (as I can't see them to count them)?

I'll update as/when anything happens, with pictures from my rank camera phone if they are worth posting :)
 
We just just leave the eggs and then the fry in the tank with the parent fish. They make very good parents and guard over both eggs and fry.
 
If you don't mind me asking why do seashells make bad ornaments? And also how exciting for you!
 
Update: Definately eggs in there! Or at least there were; he's kicked a total of 7 eggs out of the shell now. They are a lot bigger than I'd expected! I'd say they were in the 3mm to 4mm in diameter ball-park. I moved the rejected eggs using a pipette onto a bit of bogwood right next to the airstone in case they had been accidentally dislodged during the move. They've since turned cloudy so I think he's removing damaged/bad eggs; do they do this?

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Man Of Fish; I'm sure I remember being told that the calcium slowly dissolves into the tank, causing the water to harden (I'm not too concerned about this as I mainly keep livebearers; I'd have had them out faster in a discus tank). There's also the potential for fish to get stuck in the slowly tightening spiral of the shell. I personally don't like them being in there because they are marine seashells, sticking out like sore thumbs in a freshwater tank full of freshwater fish and freshwater plants.

Trailbrit; Cheers mate, I'll leave the male with the fry for a bit then ;)
 
Update; I have babies :wub:

Got up this morning to see more eggs booted out, but on closer inspection there's a clump which is mostly empty-shell looking things. There's also some fry with big fat yolk sacks sitting on the sand just outside the shell. Some of them aren't moving and some of them seem stuck on 'vibrate' but aren't even vaguely co-ordinated, so I think these rejected wrigglers might be the dead, the dieing and the weaklings. The male comes outside and fans them sometimes so they might make it if they've got it in them, but otherwise I'm going to let nature take it's course. I'm hoping that if there's this lot outside then there might be a nice shoal of fat, healthy babies deep inside the shell keeping hidden from prying eyes ;) The guppies are completely oblivious to them either way.

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^^ You can see the wrigglers on the floor in this pic; they are the smaller yellowy blobs amongst the empty snail shells. They have little pink bits on the yolk sack and tiny see-through heads and tails.
 
Update (Day 2):

Mr Bristly has started feeding again; he's come out for some algae tablet and although he spends most of his time in/on/by his shell, he is taking the occasional wander.

There's no sign of eggs or fry outside the shell now; either they've been completely eaten by snails/shrimp or have swum into the shell. The only sign that there was/are fry in there was one little fry that briefly swum into view for a second or two this morning. Other wise it's all hush-hush and nonchalance going on in there ;)
 
Update (Day 2):

Mr Bristly has started feeding again; he's come out for some algae tablet and although he spends most of his time in/on/by his shell, he is taking the occasional wander.

There's no sign of eggs or fry outside the shell now; either they've been completely eaten by snails/shrimp or have swum into the shell. The only sign that there was/are fry in there was one little fry that briefly swum into view for a second or two this morning. Other wise it's all hush-hush and nonchalance going on in there ;)
Have another look when the lights are off.
 
Unfortunately no, not even after lights out. It is only day 3 though, they'll be living off those yolk sacs for a little while and keep tucked away in that shell.

After that I might very well be snowed under by hoards of them. I'll just have to wait and see.
 
Day 4:

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^^There's a baby bristlenose on that java fern leaf, honest!

I saw a couple of little babies at lights on this morning before work. Currently I can only see one of them on the front glass but there are silly amounts of hiding places in this tank compartment. They look like mini adults rather than like regular fish fry, which surprised me.

Mr Bristly has been relocated to the community tank this evening after his earthworks started to look like they were going to cause some catastrophic ornament collapses.
 
Oh how exciting!!! He's so cute I see himthere on that leave!! <3
 
Day 6; best count so far is seeing two fry at the same time. It's a heavily planted section with a very holey bit of bogwood in it but I still think it's only a small spawn.
 

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