question

[Fishfinder1973]

ok I’m no expert but these look like eggs to me,can this be confirmed please?
Unfortunately they didn’t last long and they disappeared within a couple of hours,presumably eaten,if they were eggs.
I noticed them while doing a partial wc yesterday and I only noticed while cleaning the glass,but I’d already dropped the level below the top half of the eggs,so I quickly began to refill the tank.Thankfully I have the python and managed to get the water to roughly the same temp for refilling.All that was left were the marks where the eggs had been.The opposite end of the tank also had these smudges,and I can only assume the fish have spawned more than once.
Can someone explain the process of dealing with eggs,I would like to bring them on if possible.They will have no chance if left to hatch in the tank,but I don’t have a nursery.Is there another way of keeping them separate?How can they be removed from the glass?I imagine they will be very delicate.

Thanks

ian

 

[Essjay]

They do look like eggs. What fish do you have in the tank?

Are they as white as they look in the photo? White eggs are usually infertile, or fungused.

 

[Fishfinder1973]

They are maybe slightly more light in the photo essjay,but not by much.I would say they were just off white,like a sort of apple white.


stock is
15 tigers barbs
15 green barbs
10 pentazona barbs
1 rainbow shark
1 albino rainbow
1 yo-yo loach
1 zebra pleco
1 sultan pleco
15 mixed corys.

Two of the three albino corys are double the size of the third one and I lowered the water temperature in the hope of inducing them to lay,IF they were holding eggs.
A couple of the tiger barbs are looking a bit rougher scaled too.
I put stuff called microbe lift plant green in the tank about a week ago,and not long after,I lost a small green barb and two days later a small tiger barb and some of the fish were flashing against the wood and slate,not all the fish,but at least one of each species and that has never happened before.That’s why I done a wc yesterday.
one last thing I noticed,and this did stand out to me,was the three albino corys were swimming together and it looked as if the two bigger ones were trying to shake the small one off.Those three albinos never swim together.
That’s really all I know.I will never add plant green again,even if it wasn’t that making the fish flash.I don’t need it.
I usually do a wc when the nitrates get somewhere between 20 and 40ppm,about once a fortnight,but it’s usually 50% wc.
I live in a soft water area of Scotland,well the whole countries water is soft,pH is 7 and there is a slight reading of nitrates,but barely noticeable 5ppm or something like that.
I did notice three white marks on the glass next to the thermometer today just like those eggs,but when I put my hand in to touch them,they were merely bumps,like molehills on the glass,not fully rounded eggs.

 

[PheonixKingZ]

They definitely aren’t Cory eggs. Corys lay their eggs in gel-like sacs. Those sort of look like Nerite eggs to me...

 

[nik_n]

My first guess would be that they are Nerite snail eggs because they are on the glass. Do you have any snails in your tank?

 

[Essjay]

Nerites do lay white eggs on solid surfaces, I've got some of the glass of my tank that I need to scrape off. But they usually just stay there, nothing eats them, and they have to be forcibly scraped to get them off.


Cories also lay eggs singly on surfaces but they are usually translucent unless they are infertile/fungused.


(It's pest snails that lay eggs in jelly)

 

[Fishfinder1973]

I don’t have snails in the tank,and never have.The only source I can think of is a plant I put in a couple of weeks ago.It was a tropica plant in one of those blister packs,but I had a look online and the pictures of the infertile Cory eggs are a close match.They were perfectly round in shape.

Thanks for the input everyone.I will have to keep a close eye on things for a while and check the glass and wood every morning before I go to work.
I don’t want snails,but if they appear then that’s fair enough.

 

[Naughts]

My thought was cory eggs too. NCaquatic's threads are a good source of information on cory breeding.

So Many Babies

And now my trilineatus are at it again. Some eggs collected where I can find them lol

www.fishforums.net

 

[Slaphppy7]

Infertile cory eggs.

 

[Fishfinder1973]

My thought was cory eggs too. NCaquatic's threads are a good source of information on cory breeding.

So Many Babies

And now my trilineatus are at it again. Some eggs collected where I can find them lol

www.fishforums.net

Thanks for posting the thread Naughts.After looking at the egg photo I would now say they were corys.