The Lightning Project

The ongoing saga of the PNG Lightning Maroon Clownfish Breeding Project

Browsing Posts tagged hatching

Yes, when you’re not actively rearing any spawns (due to a planned fishroom redesign) tracking them seems to fall out of priority rather quickly.  That said, it’s a habit I should stick to, even if it makes for rather mundane blog updates!  Gotta record the data.

Wednesday, June 24th, the F1 Lightning X Lightning pair spawned, putting down what is now their 14th spawn.  For whatever reason, they’re taking a slower incubation period…most of the eggs hatched 7 days later, the following Wednesday night, July 1st going into today.  Roughly 1/3 of the nest remains…and presumably will hatch tonight.  I should point out that the pair is currently receiving no foods other than Spectrum’s Thera A, and has been on such a diet for quite a while.  I’m pretty impressed with the nests I’m seeing from fish eating only pellet foods!

The F0 (wild) Lightning Maroon and White Stripe spawned this week again, spawning on Tuesday, June 30th.  Based on my records this is their 59th spawn. Crazy to think about.

Yes…it’s that time again, more spawns to just track for now.

First up is the F1 Lighnting X Lightning pair; they threw down a nest on 6/14/2015; the eggs hatched out the following Sunday night leading into Monday, so 6/21.  That was the 13th spawn.

Meanwhile, downstairs in the fishroom, the original F0 pair of fish put down another nest, I suspect on Wednesday, 6/17/2015.  As of tonight (6/22, going into 6/23) they haven’t hatched yet and are not looking fully developed even, so I could be a day off (eg. maybe it was Thursday they laid) or if the hatch tomorrow night, they’ll be right on schedule basically.  This is their 58th recorded spawn.

It looks like things are slowly returning to normal here.  The wild Lightning Maroon’s spawn mostly hatched out Sunday night (May 31st going into June 1st).  Oddly though, their eggs, while viable, continue to appear very small.

And then yesterday, June 2nd, the F1 Lightning X Lightning pair spawned…a smaller nest, but frankly they’ve not been getting intensive attention and we’ve taken some trips where the fish just fast for a day or two.

So much going on and I’m NOT doing a proper job of tracking things.

I should start with the unrelated F0 PNG White Stripe Maroon Clownfish pair…they spawned sometime last week, possibly Wednesday the 12th. I didn’t make much of a fuss about documentation of it because I knew I couldn’t deal with them at any rate; I can’t remember if it was very late Sunday night, or more likely Monday afternoon, when I found the last few eggs just sitting around in the tank.  This pair, overall, is spawning quite infrequently.

The Lightning Maroon Spawn, #44, never made it to hatching.  Something happened, and the pair consumed the eggs.  Could the Lightning foundation pair be winding down or did they just have a bad spawn?  Their prior spawn produced a good amount of juveniles, which were undergoing settlement and on TDO A by last Thursday, which is when I drained them down to about a gallon, filled with clean new aged saltwater, and then turned them on to the larviculture system.

LxL spawn #4 was one I was going to let go because I wasn’t in town (I was off speaking at the Milwaukee Aquarium Society’s “Fish Bowl” event), but in short, Mike Doty decided to play with harvesting the eggs.  He took approximately 25% of the next out, using my little egg siphon, on Friday night (Nov. 14th).  I got a text while in Milwaukee…there was a hatch..and a big one.  Surprisingly, he simply did it in a 1 gallon olive jar with an air feed, sitting in a water bath with probably 75% new water.  If I had done that, every last egg would have been dead.  All credit where it’s due – Mike may well in fact rear Lightning X Lightning offspring before I do (they’re at HIS fishroom ;) )  Mike further relayed that this was a split hatch, with more eggs present Saturday the 15th, but all gone by 4 AM Sunday morning.

Yesterday, I caught wind that the F1 Lightning X Lightning pair was going to spawn again…the female was roving the tank with her ovipositor down.  I did my best to FURTHER add tile to their tank, blocking their prior spawning spot off..which caused them to move to another side of the tank’s back wall, which I then blocked off with tile. They were still going through the motions of finding a spawning site when I turned the lights off after Midnight; technically they spawned in the overnight on the wee-early morning of 11-18-2014, but if I was to be thinking about these eggs properly, then normally they’d be a 11-17 spawn.  Ultimately, they selected the ONLY section of black plastic background that I cannot get tile on (near the tank’s filter return).  Either the nest was small, or they ate most of it, and I am considering foregoing working with it.  I’m thinking that what this pair may really need is a clay pot…that might be the ticket here.  So LxL Spawn #5 has been put down, but for now, probably will be left alone.

It’s the 7th night for Spawn #43 which was spawned on 10-22; we’re on the night of 10-29 going into 10-30 now; there wasn’t any noticeable hatch on the tile over the 6th night (I left it with the parents yesterady)….it will get pulled.  This is what Spawn #43 looked like when it was laid fresh on 10-22…I should also point out this is the first time I’ve taken pictures of the F0 original wild pair of Lightning Maroon X White Stripe PNG Maroon Clownfish.

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The larvae from spawn #42 that are still alive have largely settled out…it was a small group, but I’ll find a way to work with them.  More importantly, it looks like LM X LM Spawn #2 might be over…I have not found any larvae in the BRT, so one more look, I repurposed  it for Spawn #43.  The eggs got the usual dip in H2O2, but started hatching during it, so they were moved straight into the BRT with 8 gallons of broodstock water and a few ML of RotiGrow Plus (only thing I had thawed…it’ll be fine for the first 24 hours and by that point I’ll have RotiGreen Omega up and running).

The most frustrating news is arguably LM X LM Spawn #3.  So..to recap.  Here was the first spawn:

F1 (Lightning X Lightning) first spawn for the Lightning Maroon Clownfish

 

So…I took some proactive steps and tiled the back wall of the tank.

This was LM X LM (or LxL if you prefer) Spawn #2 on the first attempted hatch night:

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Yeah..that gray patch on the side..those are the eggs…

So that didn’t turn out obviously…so I tiled the side wall as well.

Here is Spawn #3, laid on 10/27/2014:

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The internet shorthand FML seems somehow appropriate. Clearly the pair is flipping me the middle fin.

 

It’s been a few late late nights waiting for results on the Lightning X Lightning pair’s second spawn. Given that they had either spawned on Thursday, Oct 16th, or Friday, Oct. 17th, and going off of their parents 6 day hatch window, I set up their tank on the evening of Wednesday, Oct 22nd, to prepare for a possible hatch.  This made sense given that it would either fit into the 6 day window if the eggs had been spawned on the 16th. No hatch was observed. On Thursday night, Oct 23rd, I encountered a very small hatch around 3 AM, a solid hour after lights out.  But, nothing furhter happened, so the 10 or so larvae I had snagged simply sat in the snagger for the next 24 hours.  And now, Friday night, the 24th, going into Saturday AM, it’s now just shy of 4:00 AM and I just finished “putting away” around 50-100 larvae from the F1 Lightning X Lightning pairing.  I snagged them with the Vossen Larval Snagger…ultimately most totally bypassed the snagger, so I had to set up a LED crank-charge flashlight and manually attract the larvae to it. I also had to really crank up the flow rate faster than I was comfortable with, but if I hadn’t done that, I watched as most every larvae would swim back out of the trap once it realized what was happening.

I gave LxL Spawn #2 a very weak dosage of RotiGrow Omega (yes, I know this is not ideal, but I need to thaw out some new RotiGreen) and placed a half gallon’s worth of SS-strain rotifers (because I have those going now as well, thanks Mike) along with roughly 4.5 gallons of broodstock water in a BRT downstairs. Now we wait. Knowing how these fish tend to color up quickly, as long as I don’t massively screw up, we should get an idea of what’s going on very soon…eg. within 30 days.

The larvae from Lightning Maroon Spawn #42 did not do well despite what appeared to be a solid hatch on their second night.  I’m guessing no more than 6 are still viable.

Back on Wednesday, Oct 22nd, 2014, the Lightning Maroon and her mate threw down Spawn #43.  A beautiful nest.  I have a lot of photos in the camera to post, but I’m still recovering from two back-to-back laptop rebuilds, so pictures are just going to have to wait for now.

Lots of little updates

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Spawn #41 was left to go for itself because the Lightning X Lighting Spawn #1 took priority.  Unfortunately, by the time the eggs reached the anticipated hatch night, Wed, Oct 8th, there were only 7 eyed up eggs left.  I attempted to harvest them by using a rigid air tube attached to a flexible tube to scrape and siphon them out…this broke one egg but the rest went through intact.  By the next morning in the incubation cup (a half gallon specimen cup with broodstock water), the eggs were dead.

So back to the F0 Lightning X White Stripe pair; Oct. 11 they laid Spawn #42, and tonight, Friday, October 17th, 2014, I pulled the eggs and gave them the typical H202 Bath..about 11 minutes in, we (Paul Whitby of HighDefCorals is in town to speak at our club) noticed that larvae had begun to hatch, so the dip was ended and I placed the tile in the cleaned, readied 6 gallon BRT which had 5 gallons broodstock water and 1 gallon new water.

In other news, the Lightning X Lightning pair put down their second spawn somewhere between 5 PM on Thursday, Oct 16th and 4:30 PM Friday, Oct. 17th. It’s a much larger nest, which was expected. Despite having basically tiled the entire backside of the aquarium, the pair thwarted my efforts by spawning around the corner in a tight area of black plastic background. I don’t know when the proper “harvest” date will be for these fish; I’ll like try my Vossen Larval Snagger this time around. But I also know that I’ll be putting even MORE tile into their tank now ;)

So I discovered a trick last night – if I run my finger over a clownfish nest, the fish inside the eggs will wiggle if alive. So despite having had no appreciable hatch all day, I pulled the tile, sanitized it again with H2O2, and threw it back in the larval tank.  I DID get a few eggs to hatch during the vigorous aeration in the sanitizing dip, so that further told me I was on the right path.

I didn’t get to check the nest until 4 PM today, but sure enough, there were significantly more larvae in the tank.  It required a new strong feeding with rotifers.  I once again tested the eggs…still viable, so I put some ChloramX in the water, and left the tile back in there.  They may not get checked again until tomorrow…

Lots going on in the basement.

Spawn #33 is almost all through meta at this point, so this afternoon I turned on the system water.  It’s sad that I’ve never used my larviculture system as it was meant to be used by design, but hey, finally, I’m doing it right.  The system water is dripping through at a rate of roughly 1-2 drops per second…a very slow flow at this point but it should slowly flush out larviculture water over the next day or two.

Spawn #34, well, I botched it.  I did have more hatch out during the day today, but I discovered tonight that I had neglected to return the heater to the tank after I cleaned it last night. So basically the eggs went from 84F down to room temp, which was probably 76F.  Historically, any time temps go down on eggs, I’ve found it to be a bad thing.  I returned the heater to the tank, made sure it was really greened up, added some rotifers, and will now wait to see if anything else hatches out in the next 24 hours…

As of 11 AM, it’s a small hatch on Spawn #34.  I added a little RotiGreen Omega to help keep the fish off the walls, and will check a bit later to see if the hatch has improved during the day.

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