Royal Gramma hatch....what next?

marinebetta

marinebetta

Premium Member
Posted this at another forum .

Collected about 110 larvae on the second day and about 180 tonight (came back late last night so didn't collect any). So far I've been dumping the larvae together and am wondering if that's OK to do - how many day's larvae can you put together realistically? Or would it be best to have each day's hatch in a seperate larvae tank? (That would be too many tanks!:eek1: )

Any pearls of wisdom would be greatly appreciated!
 
Congrats MB,
Nice comparrison on your larvae pics. do you have any pics of the nest or a breeding log that got you to this point. Good luck.
ps.- It's never too many tanks.
 
HI Marine Betta

I think i had about 4-5 days worth together, they seemed to go ok, straight rotifers worked for me as a starter, seem to be very similar to orchid dottybacks.

Christian
 
Re: Royal Gramma hatch....what next?

<a href=showthread.php?s=&postid=8769557#post8769557 target=_blank>Originally posted</a> by marinebetta
Posted this at another forum .

Collected about 110 larvae on the second day and about 180 tonight (came back late last night so didn't collect any). So far I've been dumping the larvae together and am wondering if that's OK to do - how many day's larvae can you put together realistically? Or would it be best to have each day's hatch in a seperate larvae tank? (That would be too many tanks!:eek1: )

Any pearls of wisdom would be greatly appreciated!
Click to expand...

For daily hatchers,like my blennies,I put one week together.
Can you see the nest site?.Tell us more about the tank and the fish..:)
Good luck,keep posted!
 
Great news. Always wanted to try my hands on these guys but the broodstock kept dying somehow. Heard T. chuii does wonders for these guys. I've got an algae disk that is still unused (and probably for months to come). Do let me know if you can find a use for it. :)
 
Don't think I am up to culturing algae - too much work! Instant algae for me! :D

This pair formed up when they escaped their individual holding betta tanks at the retail shop (Aquaria Arts here in S'pore) and hung around instead of beating each other up. Told the shop owner I would take 2 IF he could catch those 2....and he did!

Nothing special about the tank and care. They share a standard 2ft tank (10 - 15 gal?) with a pair of my F1 percs. The male holes up in a clay tube (closed at one end, original purpose a water bottle holder for hamster water bottles) and he stuffs the opening with chaetomorpha.

Typical courtship - entices the female in during the middle of the day and presumably spawns with her. I can't even see into the nest to tell for sure they spawned but just monitored her gravid condition and looked every night for fry.

Most likely I'll miss tonight's collection - working late. Maybe tomorrow's as well; so I'll just probably start up another larvae tank for Wed's batch.

From what I've read, they should not be too difficult to rear. As Chris said - pretty much like dottybacks (but I haven't had any of those yet!:) ). Still, C-quest reported that their success rate to meta was around 25%. If they're like dottybacks, do they need antibiotics around metamorphosis?
 
I only raised about a 100 when I was there from various hatches, we kept up to 4 days since we had a lot of tanks.

They are easier to raise easier than dottys the bad part is getting eggs. Nobody knows if they need antibiotics, not many people works with these anyway, but i can tell you that we used them just in case, but as with dottys we did not use them close to meta, we did starting from about day 7-8 for 7 days. A fish so hard to get eggs from you don't take any chances and antibiotics don't hurt.

Ed
 
Agree on what ediaz said about the difficulty in obtaining eggs from this species. If you're going to use algae paste, a mix of Nanno & T-ISO sounds good to maintain the nutrition of the rotifers. A little T. chuii would help in the antibiotic aspect. Do take some photos of the little ones! :)
 
Thanks, Ed, for the insight. I guess RGs over where you are is similar to Oscellaris over here - they are cheap for you guys so culturing them doesn't make much economic sense. Same case over here for the regular oscellaris - you couldn't get US$0.20 for one! RG would make abit more sense to culture here than Oscellaris.

Think it's about time to break out the neomycin! :)
 
The only batches we cultured were sold for 45 dollars to retailers back then, i guess beacuse nobody was doing it and also TR fish were worth what they are worth we were selling Dottybacks for 27 each to retailers. People kept asking for more.

Right now if somebody does it they will get paid about 2 dollars each.

Nice pics, your larvae looks very healthy, thats my favorite larvae.

Ed
 
Looks like the honeymoon's over - over a 12 hr period, almost all of the larvae died. The rest died between this morn and just now :sad2:

Maybe it's the antibiotic thing (or lack of - only put some in this am when it was too late), but more probably a water quality issue? All that booming rotifer population can't be that good for water quality.

Well....just have to put it to experience and work on batch 2!
 
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