The Lightning Project

The ongoing saga of the PNG Lightning Maroon Clownfish Breeding Project

Browsing Posts tagged Spawn #14

Today (11-16-2013), Spawn #17 was laid.  Spawn #14 is clearly showing both forms again (roughly 50/50 split of White Stripe and Lightning Offspring) and Spawn #15 has just completed metamorphosis.

Back on track it would seem…Spawn #14 appears to have completed metamorphosis.  Despite good care, and seemingly good success, I can’t estimate more than 25-30 offspring.

Spawn #15 didn’t hatch as planned…only 2 babies the first night.  Small hatch the next night, and possibly more the following night.  Hard to tell how many larvae there are at this point, but they seem to be doing well so far. So potentially this was spread over 3 nights?  Sheesh!

The last news, today, 11/6/2013, the pair put down Spawn #16.

Hatch night for Spawn #15?

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Per my last post, the start of the week saw the spawning of the 15th batch, although I wasn’t around to see it.  So I’m having to guess on the spawn date.  I *thought* about pulling the eggs on Saturday night; this would have been 6 days (144 hours) post spawn, had they been laid on Monday.

I looked hard at the eggs, and decided they just didn’t look “silvery” enough for me to pull them. So I wanted 24 hours, knowing that in the past delaying when I thought things might be ready had caused the loss of a batch. However, this time the wait paid off…there were still the same number of eggs tonight, Sunday.  So we are now either 144 housr, or 170 hours post spawn.  Eggs were pulled and cleaned with roughly 3ML H2O2 (hydrogen peroxide) in a 1/2 gallon specimen container for 12+ minutes, and then into the BRT for hatching (the 10 gallon still has the near metamorphosis larvae from Spawn #14).  I saw one baby hatch IN the H2O2 dip, so it’s very possible that I gut-timed this one right.  Plenty of rotifers on hand, this could be a good run.

Spawn #14 and Spawn #15

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Was gone Monday and Tuesday…came back Tuesday night and discovered a BIG nest of Lighting Maroon Clownfish eggs…so we now have Spawn #15.  Was it laid on 10/28/2013, or 10/29/2013?  Not sure.

Spawn #14 is doing well, no shortage of rotifers this time, lots of silver bellies.  I’m going to estimate that we had a couple hundred hatch (it was a small nest) and I’m guessing there are maybe 50 larvae in the 10 gallon tank at this point in time.

Tonight is the anticipated hatch night for spawn #14.  It’s a smaller clutch…probably only a few hundred eggs to hatch, and it might have partially hatched earlier in the day or even last night.  I set them up in the 10 gallon tank with blacked out sides, using 50% new water and 50% broodstock water.  The eggs were sanitized with hydrogen peroxide at a rate of 3 ml / 0.5 gallon for 10 minutes, after which they were removed and placed in the tank for hatching.  Lights on the broodstock system currently go out at 11:30 PM, but the room doesn’t reach its darkest point until 2 AM.

On an interesting side note, I may have discovered a contributing factor, if not the outright cuplrit, of the loss of all juveniles in spawn #12.  It turns out that the Ehiem heater in the tank was no longer sealed…I noticed it wasn’t working when I sanitized and cleaned the tank earlier this evening, and upon closer inspection there was moisture inside and the coils showed white discoloration (reaction with saltwater presumably).  Did this have an negative impact on the babies?  Possibly…at minimum it cold explain why metamorphosis appeared to take so long…the tank may have been running cooler (eg. 74-76) than I had wanted, and that delayed meta could explain why the babies failed to survive post meta.  Or not; it’s only one of many possible factors at play here.

So the tank has a new heater, and hopefully we get a good hatch tonight.

Spawn #14

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So I get yet another chance.  The change in photoperiod set the fish off for a few weeks, but last Friday, October 18th, the 14th spawn was discovered.

An update on Spawn #13 – turns out I was wrong – once again, for the third time this year, there is a LONE survivor. And once again, as luck would have it, that lone survivor is a Lightning and not a white stripe.

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