Green Mandarin (Synchiropus splendidus) Breeding Log!

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The extra water capacity should make it easier to maintain viable water quality while power feeding. I would leave it as is.
 
<a href=showthread.php?s=&postid=8176627#post8176627 target=_blank>Originally posted</a> by westcott
The extra water capacity should make it easier to maintain viable water quality while power feeding. I would leave it as is.

The problem is keeping the rotifers in check and doing daily water changes. It's a much easier situation to address when changing 1 gallon vs. 2 (siphoning through an air tubing goes really slow as it is!) Running at 5 gallons for a while allows me to really rapidly dilute the tank without having to first remove water IF the need arises.

Matt
 
So 2 gallons came out, and again I managed to siphon out a couple mandarins in the process which were returned to the tank. 1 gallon of clean water + 750 ML Nannochloropsis and 750 ML T-Iso are being slowly added back into the tank now.

Matt
 
Nice pics,these larvae look sturdy!They look empty bellied,though?.
See your Apogon thread for additional comments,cause your larval tank is running in both threads. :D
 
I AGREE Luis, it DID look to me like they were empty bellied! There's TONS of SS & L Strain rotifers available to them...my one thought is they may have been eating rotifers that had empty bellies themselves (which would look clear).

We'll see if things look any better tonight - I'm still really frustrated with "greenwater techniques"...having to constantly water change to keep the rotifers under control seems strange. My next attempt around I may try going exclusively with NO greenwater and strict selcon enriching of rotifers....it's all about experimentation at this point!

Matt
 
Just past 3 days post hatch, and Luis's comments about the empty stomachs encouraged me to pull out 5 larvae and take another look under the QX5. So here are larvae at approximately 73 hours of age.

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I think that last one says it all. FWIW, larval behavior is perhaps a bit peculiar...most all of the mandarin larvae are currently at the surface and have been probably for the last 24 hours.

Matt
 
<a href=showthread.php?s=&postid=8178960#post8178960 target=_blank>Originally posted</a> by mwp
[BI think that last one says it all.
Matt [/B]
Beautiful larvae!Belly looks full,but it´s hard to say being they green as green algae fed rots:p
You think you see rots there?.
Scientists tear up babies bellies with dissecting needles and look at the intestinal mess for mastax,the rots´horny beaks.Of course I will never do that with a live larva!:mad:
 
As I´m not an expert at all i can just say the larvae look cuter in this hatch than the ones you first shot some pics.
As belly fullness, I´m still learning from the photos...

What is you lightining at this larval tank ?

As for water quality, lowering water level also sounds me scaring, but I see your point. Any chance to add a sponge air-lift ? Is it used for larvae this small ?
Keep going ! if you´re shipping overseas I´m on the list of captive bred one ! ;)
Anderson.
 
Well, here's more cute larvae for you Anderson! I collected both a Mandarin larvae (approx 82 hours post hatch) and an Apogon leptacanthus larvae (143 hours post release), and I shot them side by side at 10X. Not much of a "change" from the pics earlier today, but I'm trying to stay on the "every evening" routine of harvesting and photographing my larvae as they develop.

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All the mandarin larvae appeared to be at the surface when I went collecting shortly after lights out tonight.

Matt
 
This morning I've set out again on a mission to keep the tank healthy - 1.75 gallons came out, along with just a couple larvae. 1 gallon of clean water + 1L of Nannochloropsis is now being slowly siphoned in.

Matt
 
Synchiropus splendidus larvae - 107 hours post hatch

Synchiropus splendidus larvae - 107 hours post hatch

That's right, it's another evening of pictures. It took me FOREVER to find this one lone mandarin larvae..I'm really not sure what happened but this is NORMALLY about the time in the past when most of the larvae are gone...4-5 days is my typical threshold. There's obviously something about what I did that got that one lone one out to 10-14 days or whatever it was (I'd have to go back to look). Basically, most all of the larvae save one or two where at the surface all day, although it appeared that they were feeding (the ones swimming in the midwater were MORE lively though).

This *may* be the last larval shot on a Mandarin from this batch unless I completely overlooked them (i.e. maybe they're all on the bottom sleeping). Mandarin larvae, 107 hours post hatch.

I made sure to grab some video as well.

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If their feeding habits are anything like the gobies, five days +means they are feeding on the food provided. It was an interesting read and the smaller strain of rotifers seems like something worth trying.

A copepod mat might be worth trying too.

Good Luck and keep up the good work. I am confident I will get a tank raised mandarin from you soon.
 
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