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Re:Losing Clownfish larvae After first 8 hours after hatch
Monday, March 12, 2012 10:53 AM
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Thanks for the vote of support Andy, but it's OK with me if Mike doesn't want to try it my way. There are a million ways, and my way might not work for him. But I do appreciate your regard for my work. 
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Re:Losing Clownfish larvae After first 8 hours after hatch
Monday, March 12, 2012 11:46 AM
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An update from my end. I hatch an onyx hatch on the 10th. The hatch was a nice size around 200. This time I used 100% fresh saltwater to hatch the eggs. I used about 6 gallons of water in a 10 gallon tank. All the eggs hatched within 2 hours after I turned the lights off. I removed the tile from the tank, added rotifiers and added a light does of rotigreen omega to the water. The next thing I did was I blocked of the light to half of the tank. On the dark side I put the heater and the airstone. Most of the larvae were swimming on the light side and starting eating immediately. I also used a slightly lower temperature of 78-79 degrees. When I checked on them in the morning almost the entire batch was alive. I am guessing I lost maybe 10-20 of them. As of this morning I have lost a few more but had 100+ that seem to be doing pretty well. I topped the tank of with some freshwater and went to work. So far on the last three batches I have used new saltwater and that seems to be helping. The other things I think are helping is using a 10 gallon tank with larger amounts of water, using lower amounts of rotigreen omega, keeping the rotifiers a little less dense and keeping part of the tank darker. I will update again in a couple of days with the results through meta. The next batches I plan to use the same method and see if I continue to see improvement. Thanks for all the responses. All the information is very useful.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Monday, March 12, 2012 5:28 PM
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Thnx for all the support and info guys. I raised multiple batches in these BRT's with little problems. They are black tuff stuff feed buckets from tractor supply. It could be a problem with them. I will keep that as something to look into. I have been getting pretty dense amounts of rotifers in the BRT's in short amount of time. I'm still inclined to think that it was the Chlor Am X. Overdosing it. It does ok with the rotifers and the strength i'm using, but then again they are producing a lot of ammonia. We shall see Wednesday. I believe i am pulling the nest tomorrow night. Try again. I will keep better tabs on the ammonia level in the brt than i have in the past. At what level SHOULD i start adding Chlor Am X?
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Re:Losing Clownfish larvae After first 8 hours after hatch
Monday, March 12, 2012 5:52 PM
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It was nice meeting you yesterday. I wish I'd seen you before you left... Chad has a bottle of RGComplete he had to give away. I went looking for you but you were gone. 
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Re:Losing Clownfish larvae After first 8 hours after hatch
Monday, March 12, 2012 6:07 PM
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Wilkerson lists up to 3ppm at pH of 8.3 and up to 25 at a pH of 7.5 or less. Looking at a seachem badge the alert color is WAY less than 3ppm. I was never even close to 3ppm with normal maintenance and using RG + for my greenwater.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Tuesday, March 13, 2012 8:05 AM
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It was nice to meet you too. Too bad I missed you I have been wanting to try that product out. Thanks for all the information you gave me, I got a few more things to keep an eye out for. As of this morning I still have 100+ from the last batch that are doing pretty well. I can see a few that look like they may not make it but overall things are progressing pretty well.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Tuesday, March 13, 2012 8:27 AM
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Thnx for the info waldend. Sounds like we never get close to it being an issue, especially with mine being on a central filtration system. Well it's going to be awhile before i can try anything else. The Darwin's which SHOULD have been pulled tonight decided it's be better to hatch on day 8 this time instead of day 9 or 10 as in the past. So that nest was lost to the brroodstock system. It'll be another 10 days or so before i have something else to try with as i have no nests currently laid.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Tuesday, March 13, 2012 10:41 AM
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Very good thread, I just found it. Just to add something I don't think anyone else mentioned. I have had PMD issues a lot. A solution that worked for me often was adding new carbon to my broodstock tanks.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Wednesday, March 14, 2012 7:06 AM
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Good idea, Scott. As the weather warms up in the Northern hemisphere, we'll all be getting our spawns hatching sooner, unless you keep your broodstock temp in the mid 80s year round. (I don't recommend that…)
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Re:Losing Clownfish larvae After first 8 hours after hatch
Sunday, March 25, 2012 9:41 PM
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Just to update my last batch has hit 14 days old and I still have around 100 that have made it so far. That batch I used fresh saltwater from hatching to now. I just had another hatch today. I am using the exact same method this time and I will let you know how I do. Thanks for all the information
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Re:Losing Clownfish larvae After first 8 hours after hatch
Monday, March 26, 2012 10:43 AM
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Congratulations! Nice to hear you are now having success. Keep up the good work! Please do follow up with us on the new batch, too.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Tuesday, March 27, 2012 8:20 PM
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The new batch is now two days post hatch. I had a smaller hatch due to me pulling the eggs a little early and some of the eggs had fungused. Even with that I had about 100 fry that hatched and so far I have lost maybe 25 or so. I think most of these loses was do to the different times of day the fry were hatching since I pulled them early. I had to leave the tile in the tank much longer than what I usually do. As of now the larvae are looking pretty good and eating well.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Wednesday, March 28, 2012 7:44 AM
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I'm glad things are looking up for you!
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Re:Losing Clownfish larvae After first 8 hours after hatch
Wednesday, March 28, 2012 8:34 AM
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 Originally Posted by waldend Wilkerson lists up to 3ppm at pH of 8.3 and up to 25 at a pH of 7.5 or less. Looking at a seachem badge the alert color is WAY less than 3ppm. Just an FYI, when comparing the SeaChem Ammonia Alert with an API and a Salifert Ammonia test kit I found the test kits usually read 5-10x what the Alert read. I use the Alert as an alert, if it shows any color I take steps to detoxify the ammonia. This works well for me.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Friday, April 6, 2012 4:45 PM
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So a little update. Several batches hatched, no immediate deaths like before. So i'm sure it was toxicity from the Chlor Am X. Now the issue i am having is reliable egg hatches. I'm not getting much of a hatch on the nights they should be hatching. I remove the pot and put back with the parents then pull again that night before lights go out. Unfortunately the ones that hatch (which is the majority of the larvae) on the 2nd night never seem to make it past 2 or 3 days. I've been trying the delaying of adding the green water until later on the 1st day. Although i have been feeding rotifers in the morning as soon as lights come on. And keeping the BRT partially shaded to reduce light into the brt. I seem to still end up with a poor survival rate to meta. Thoughts? On a side , but related note, I am going to be starting a line of vlog and information you tube videos as part of our business. If some of you are up to it in the future i'd love to do some one on one skype video interviews to post. Talking about breeding subjects and opinions on current subjects affecting the industry. I believe that this is the next wave of communication that extends beyond just typing in forums. Let us know your opinions.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Sunday, April 8, 2012 3:54 AM
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Finally had a decent hatch out of orange ocellaris. About 70% of nest was still swimming when the lights went out last night. We'll see how day two goes.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Sunday, April 15, 2012 3:32 AM
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OK guys. Tried something different and so far seems to have worked. FINALLY a great hatch out of B+W ocellaris and they are ALL still alive at the end of day one. AS soon as i get to feeling better these posts will move to our new You Tube Vlog/info videos at www.youtube.com/thecoralshoppe
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Re:Losing Clownfish larvae After first 8 hours after hatch
Sunday, April 15, 2012 4:19 AM
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Congrats
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Re:Losing Clownfish larvae After first 8 hours after hatch
Monday, March 4, 2013 11:31 PM
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Any update on the cause and solution to this problem? I am now dealing with it and would like some ideas/suggestions. thanks.
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Re:Losing Clownfish larvae After first 8 hours after hatch
Monday, March 4, 2013 11:59 PM
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For me it was using freshly made saltwater for the larvae. I believe there is too much bacteria in my broodstock tank from vodka dosing which was killing the larvae overnight. I now use brand new saltwater at the same salinity and temp as my broodstock tank with every batch. I setup the larvae tank the night before hatch. Let it run until the eggs are ready to hatch then either transfer the eggs and hatch them or larvae collect them from the main tank and move them into the larvae tank. I have consistently been getting 100-200 fish through meta with this method. I tend to have better batches catching the larvae post hatch then hatching them myself. I always seem to screw up the airflow on the eggs.
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