So this evening I pulled spawn #12 for hatching, but I’m changing things up. I keep trying the same old thing and get the same old crappy results. So…
#1. I disinfected the spawn for 15 minutes with H202. In a nutshell, I pulled the tank water and the tile, placed them in a large specimen up which holds around 0.5 (half) a gallon of water. I introduced 8.5 ML of Hydrogen Peroxide, added an airstone, and let it sit. After that, I moved the airstone and tile into another specimen cup of the same size containing tank water, but no H202. This was the rinse phase. (Dr. Matthew L. Wittenrich suggests a range of 1 to 5 ML per L, H202 to saltwater, as a treatment in his 2007 book The Complete Illustrated Breeder’s Guide to Marine Aquarium Fishes).
#2. I’m not using a BRT – Black round tubs have many benefits, but they suck in one aspect – you can only observe the contents from above (unless you install a plexiglass window). For this rearing attempt, I tore down one of my old 10 gallon tanks that had been holding freshwater Angelfish fry. The tank in question is painted black on all sides, including the bottom, save one end pane. I scrubbed it, rinsed it, filled it with 5 gallons of water from the broodstock tank and roughly 3 gallons of clean new saltwater from the mixing bucket. This will be my hatching tank this time. Glass tanks like this work fine for clownfish…so screw it, I’m going to SEE what’s going on this time.
#3. I’m using an ammonia alert badge – yes, these are great tools, but they’re designed to be viewed through glass. Great for a 10 gallon tank – bad for a “BRT”. To be honest, even when I’ve used one I’ve never had a problem, but once I started using BRTs I stopped using Seachem Ammonia Alert Badges because they just don’t work. Well..might as well fire it back up.
#4. I tested the broodstock water. I rarely if ever bother with water tests these days…there is seldom any reason to check as the water invariably is always “good”. Still, I might as well be a good aquarist and check things. Currently the Lightning Maroon and her mate were in 8.4 pH, 0 ppm nitrate, and 1.023. The larval tank will wind up being very similar no doubt, maybe 1.0235 for SG (the water in the mixing bucket was around 1.024 on the refractometer).
I placed the tile at the far end of the tank, away from the unpainted end. I left on some room lights; this should allow light to attract the larvae to the front of the tank, away from the heavier air flow. There’s not much else to say about this setup at the moment – this is more akin to my “classic” clownfish rearing of days gone by, and is similar to what many folks still do today for hatching and early rearing.
On the other front – 3 Lightning Maroon offspring are left up for auction, the last being a LM12 whose auction ends Monday morning. I love how Mark @ Blue Zoo Aquatics has hidden bidder identities. I know who a few of the bidders are now from past auctions, but most are still a mystery to me. In any case, I have to say / ask this one thing – are you all having fun?! I know, I know, auctions are thrilling and heartbreaking. Still, I’m an addict myself (I regularly bid, but rarely win, auctions on AquaBid.com). If I was in your shoes, I have to say there must be a great feeling being the one who got to bid $5 for a Lightning Maroon Clownfish, when the auction started. Even if you didn’t win, you at least played a part and got to participate. As most of you have probably followed over the years, I always felt this was “everyone’s” project, and so too, placing these fish up for bid on the open market meant that everyone had a fair and equal shot at getting them.
After round 3, there are at most, 10 fish left to find new homes and THAT WILL BE IT until I manage to rear more. I should mention that the single sole survivor from spawn #10 was moved into a different BRT to live with a slightly older clutch of Sumatran Fire Clowns (Amphiprion ephippium “Sumatra” F1). I was wasting a lot of food feeding a 16 gallon BRT to try to keep only 1 clownfish alive; better to put it in with the 100 or so Fire Clowns rather than overfeed an empty tank on the larviculture system. So far so good, I got to see it swimming around today, so it wasn’t killed, and should grow up alongside it’s cousins without issues.
One last note – it’s a short story. As of last week, I officially had 4 Lightning Maroons and 2 White Stripe siblings held back. The two white stripes are currently in separate breeder nets while I work on size differentiation, and two of the Lighting Maroons are already well documented here. The remaining two were holdbacks I wasn’t sure what I would do with; I still wanted to get one more pair out there to a fellow aquarist, but the person I have in mind isn’t able to take them at the moment. So they’ve just sat here.
Well, I brought them upstairs to free up the cubes for segregation and one has lived in the Ecoxotic 25 gallon cube, while the other was in a breeder net hanging in the tank. In the middle of the week, I let the smaller one in the breeder net out while I cleaned the netting, and afterwards, seeing them in separate sides of the tank, I just left it out for a couple hours. Well…a couple hours was a couple too long; I found the smaller fish beaten, but alive. I put it back in the breeder net, and a few hours later it was dead. That’s all it took.
So please, be very careful trying to pair these fish up. While I personally feel that the Lightning Maroons seem to be rather “timid” in general, they still are quite murderous towards each other.
New Holdback Headcount =5 (unless I take a fish out of “inventory”).