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•  Losing Clownfish larvae After first 8 hours after hatch

  Change Page: < 12345 > | Showing page 2 of 5, messages 21 to 40 of 90 - powered by ASPPlayground.NET Forum Trial Version Author Message luis a m Total Posts : 451 Scores: 2 Reward points : 1249 Joined: 3/15/2011 Location: Buenos Aires, Buenos Aires, AR Status: offline MBI: 0 Pnts MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, January 21, 2012 7:34 AM (permalink) 0 Originally Posted by goat585 This looks like still one more case of PMD or first night death.A very old clown breeders pest,but people seem to forget it and remain clueless about this problem. I would be interested in knowing more PMD is when Well developed eggs fail to hatch,or Larvae hatch well and look healthy,but are some or all found dead the following morning. Lots has  been written about PMD in many forums.   #21 Arc Katana Total Posts : 929 Scores: 19 Reward points : 1293 Joined: 10/20/2009 Status: offline MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, January 21, 2012 8:11 AM (permalink) 0 Just a thought, but are you checking which containers/tanks these are happening in? If it only happens in one or two, then I'd wonder about the container.  If it is all of them, then I'd be thinking more along the lines of broodstock nutrition (or did you clean the tanks/black round tubs with something?) and/or other environmental issues.   #22 KathyL Total Posts : 2639 Scores: 13 Reward points : 1504 Joined: 6/6/2010 Location: St. Louis, MO, US Status: offline MBI: 1605 Pnts MBI Site: Marine Aquarium Societies of North America Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, January 21, 2012 8:57 AM (permalink) 0 About the airstone: Are you finding a lot of the dead ones under or around the airstone? It is not the airstone that killed them, but rather the currents produced by the airstone leave a dead spot under it where immobile things accumulate.   #23 goat585 Total Posts : 98 Scores: 0 Reward points : 481 Joined: 10/1/2011 Location: Cortland,IL, IL, US Status: offline MBI: 305 Pnts MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, January 21, 2012 8:41 PM (permalink) 0 I am finding the dead ones all over the aquarium.  The hatch last night died overnight again.  After hatch I started feeding them and adding rotigrow omega.  They looked pretty good and were eating.  I keep an eye on them for 2 hours then when to bed.  Got up and all were dead.  As for as hatching tanks it is happening on any tank I use.  The one last night was brand new.    I am beginning to think it is something to do with adding too much green water or rotifers.   Maybe a lack of oxygen or something.   I am going to cut back on both and see what happens on the next hatch.    #24 Fishtal Total Posts : 5467 Scores: 37 Reward points : 2908 Joined: 8/31/2006 Location: Waterford, MI, US Status: offline MBI: 585 Pnts MBI Site: MarineLife Aquarium Society of Michigan Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, January 21, 2012 8:46 PM (permalink) 0 Have you tried using RotiGreen? http://www.fishtalpropagations.com/#!home/mainPage "Making captive breeding easier."   #25 goat585 Total Posts : 98 Scores: 0 Reward points : 481 Joined: 10/1/2011 Location: Cortland,IL, IL, US Status: offline MBI: 305 Pnts MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, January 21, 2012 11:29 PM (permalink) 0 Yes, the last two batches I use Rotigreen Omega and had the same results   #26 Fishtal Total Posts : 5467 Scores: 37 Reward points : 2908 Joined: 8/31/2006 Location: Waterford, MI, US Status: offline MBI: 585 Pnts MBI Site: MarineLife Aquarium Society of Michigan Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, January 21, 2012 11:31 PM (permalink) 0 Originally Posted by goat585 Yes, the last two batches I use Rotigreen Omega and had the same results Ok, just wondered. You said RotiGrow above. http://www.fishtalpropagations.com/#!home/mainPage "Making captive breeding easier."   #27 goat585 Total Posts : 98 Scores: 0 Reward points : 481 Joined: 10/1/2011 Location: Cortland,IL, IL, US Status: offline MBI: 305 Pnts MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, January 21, 2012 11:43 PM (permalink) 0 Sorry about that,  I meant to type green.    #28 waldend Total Posts : 604 Scores: 10 Reward points : 1855 Joined: 10/5/2010 Location: Lafayette, IN, US Status: offline MBI: 310 Pnts MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Sunday, January 22, 2012 7:52 AM (permalink) 0 When I had this going on I wish I had a meter to test O2 to see if that was really the case. Any chance you could borrow one somewhere? As mentioned earlier, once I went back to waiting roughly 5-8 hours to dose the RG+ and rotifers my die-off stopped. Good luck on the test!   #29 three fish Total Posts : 82 Scores: 0 Reward points : 153 Joined: 9/12/2011 Location: Omro, WI, US Status: offline MBI: 0 Pnts MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Sunday, January 22, 2012 8:29 AM (permalink) 0 goat585, you have written the near exact story of my short breeding career.  I am pulling my hair out trying to narrow down my problem.  I have not heard of PMD so I will go and research that.  What does it stand for?  I am also centering my thoughts around the "when" and "how much" rotifer and RotiGreen Omega to add.  I followed Kathys recommendation on bleaching, "sterilizing" the larva tank and water and have had no improvement.  I used FASW for my last two hatches and still no improvement.  Of approximately 10 hatches I have (3) juveniles to show for it.  I will be checking back to see your progress.    #30 goat585 Total Posts : 98 Scores: 0 Reward points : 481 Joined: 10/1/2011 Location: Cortland,IL, IL, US Status: offline MBI: 305 Pnts MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Tuesday, February 14, 2012 10:14 PM (permalink) 0 Well the last two batches I had were the same results.  I did have really bad hatch rates on those batches but I managed to get a couple to survive.  I had another hatch tonight.  I noticed that the majority of them are laying on their sides on the bottom of the tank.  There are some swimming.  The ones laying on the bottom are occasional thrusting upwards and then going to the bottom and laying down on their side again.  I tried to take a video and will get it up tomorrow night.     Has anyone experienced this type of behavior?  Is it something to do with my light?  The other question I have is how hard should the airstone be bubbling?   #31 Mdoty Total Posts : 156 Scores: 1 Reward points : 1044 Joined: 7/18/2011 Location: Duluth, MN, US Status: offline MBI: 1555 Pnts MBI Site: Lake Superior Marine Aquarium Club Re:Losing Clownfish larvae After first 8 hours after hatch Tuesday, February 14, 2012 10:53 PM (permalink) 0 Possibly a far fetched thought but I noticed that your first spawn report is from back in December of 2010. Is you micro algae from that time as well? If so is this the possible issue? The longest I have found for storage for micro algae is 2years frozen and if you are at that or past that point then maybe you need some new algae.   #32 Mdoty Total Posts : 156 Scores: 1 Reward points : 1044 Joined: 7/18/2011 Location: Duluth, MN, US Status: offline MBI: 1555 Pnts MBI Site: Lake Superior Marine Aquarium Club Re:Losing Clownfish larvae After first 8 hours after hatch Tuesday, February 14, 2012 10:55 PM (permalink) 0 I realize you are not at two years yet but if its old maybe its not as good as it could be.    #33 KathyL Total Posts : 2639 Scores: 13 Reward points : 1504 Joined: 6/6/2010 Location: St. Louis, MO, US Status: offline MBI: 1605 Pnts MBI Site: Marine Aquarium Societies of North America Re:Losing Clownfish larvae After first 8 hours after hatch Wednesday, February 15, 2012 6:21 AM (permalink) 0 Please post a picture of how green the tank looks.     Ideally, it should be very pastel, and just cloudy enough so that one cannot see clearly through it.  But I doubt that this is your problem….   #34 goat585 Total Posts : 98 Scores: 0 Reward points : 481 Joined: 10/1/2011 Location: Cortland,IL, IL, US Status: offline MBI: 305 Pnts MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Wednesday, February 15, 2012 7:56 AM (permalink) 0 The algae pastes are 4 months and 1 month old so I think I should be good there.  Last night as things were looking not as well as I liked I decided to added about 2 gallons of fresh saltwater to the larvae tank.  I waited about 15 minutes and checked on the tank and the larvae looked a little more active.  I added another .5 gallons of water and went to bed.  I got up this morning and I still have some alive.  Not the entire batch but I would guess 25-50 it was hard to see as there were a lot laying on the bottom but they were alive.  There were more swimming in the water column then last night.  I added a little more fresh saltwater, rotifiers and rotigreen omega to the larvae tank and left for work.  Hopefully I will have the majority of them alive when I get home.    I will post some pictures and videos tonight of how dark the water is.  I try to just add enough so it just tints the water a light green.    Thanks for the suggestions.  I should have another hatch tonight or tomorrow.  On that batch i am going to try 100% new saltwater and hatch them and see what happens     #35 TheCoralShoppe Total Posts : 158 Scores: 4 Reward points : 191 Joined: 8/27/2011 Location: Parma, OH, US Status: offline Group Account MBI: 125 Pnts MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, February 18, 2012 6:42 AM (permalink) 0 I'm going to chime in here and say i just had this problem last night. Came down this morning to find all the B+W larvae had hatched but were dead. Just a few stragglers. I've been having problems with hatching and raising any quantity of B+W darwins for some time now. It might be a fish issue or a diet issue. Not sure at this point. Mike Meadows Twitter: http://www.twitter.com/thecoralshoppe Youtube: http://www.youtube.com/user/TheCoralShoppe?feature=mhee     #36 Umm_fish? Total Posts : 2835 Scores: 10 Reward points : 953 Joined: 11/4/2009 Location: Boulder, CO, US Status: offline MBI: 775 Pnts MBI Site: Marine Aquarium Society of Colorado Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, February 18, 2012 10:59 AM (permalink) 0 I wanted to mention here that I've never had any troubles with RotiGrow Plus. But, I do tend to get O. marina in any open water and the dino tends to mop up any over use of RG.   If I might suggest: Try cycling a fresh tank through the ammonia/nitrite/nitrate cycle with water that's not from your broodstock system. When it's fully cycled, then try to raise some clowns in there while transferring as little broodstock water as possible in the process. It takes a while (to get through the cycle), but it's a way to eliminate a lot of the potential causes for the problems you might be seeing. If you still see issues, then I would certainly look into broodstock nutrition. --Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886   #37 TheCoralShoppe Total Posts : 158 Scores: 4 Reward points : 191 Joined: 8/27/2011 Location: Parma, OH, US Status: offline Group Account MBI: 125 Pnts MBI Site: Marine Breeding Initiative (MBI) Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, February 18, 2012 2:41 PM (permalink) 0 Andy, i had thought of that too. I've been trying the sterilizing effect per Kathy. Doesn't seem to be working well for me. I would always shut the BRT down on the day of pulling the pot. Scrub it , siphon out all the water and debris, and then partially fill with water directly from the broodstock tank. Pull the pot and had little trouble. Next pot i pull i'm just going to transfer over to the tub without any of the previous stuff and see how it goes. Also having trouble on the B+W's dying around and after meta. I end up with very low percentage actually being raised to juveniles. Is this common for B+W's? Mike Meadows Twitter: http://www.twitter.com/thecoralshoppe Youtube: http://www.youtube.com/user/TheCoralShoppe?feature=mhee     #38 KathyL Total Posts : 2639 Scores: 13 Reward points : 1504 Joined: 6/6/2010 Location: St. Louis, MO, US Status: offline MBI: 1605 Pnts MBI Site: Marine Aquarium Societies of North America Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, February 18, 2012 3:07 PM (permalink) 0 Let us know, please how it goes with a cycled tank.  I've been doing the bleach thing since I started doing this, and it works for me, but I sure would like to avoid it, if it makes no difference.   Two things convinced me that it was the way to go: Edgar Diaz does it, he told me how, and in Frank Hoff's book they did a trial with a cycled tank and a sterile tank, and they were able to raise more fish in the sterile tank, all the while monitering ammonia and nitrite and they went thru the roof, but the fish did better.  This may only work with clownfish.   Interestingly, I recently raised a batch in a (sterilized) BRT that I did very little to keep water quality good.  I didn't siphon more than once the whole time, didn't change water, just kept up with salinity (top offs) and feeding.  Some larvae died, but most lived, and amazingly, I have few misbars and no gill issues.  They were in the BRT for 3 weeks, and now are in the new system.  The little guys are growing fast.    #39 Umm_fish? Total Posts : 2835 Scores: 10 Reward points : 953 Joined: 11/4/2009 Location: Boulder, CO, US Status: offline MBI: 775 Pnts MBI Site: Marine Aquarium Society of Colorado Re:Losing Clownfish larvae After first 8 hours after hatch Saturday, February 18, 2012 6:49 PM (permalink) 0 I've placed a fairly large volume of my display tank water under my microscope a drop at a time and I can promise you that it's not the water I'd prefer to raise my chilluns in. Presuming, of course, that my children could be raised in water, but you know what I mean. That's why I run mine as a separate cycled system. I think it's time I start mine over again, but that's another story.   The two points of using broodstock water, from what I can tell, are to avoid some ammonia build-up by importing a bit of biofilter to the tank with the larvae (which doesn't work very well in most cases anyway) and to avoid the harshness of newly-made ASW. By cycling a tank first, you avoid both of those problems while also avoiding importing problems from your broodstock tank water. It's just a way to try to narrow down the field of possible problems to help try to figure out what's going wrong.   The problem, of course, is that it takes a long time to cycle a tank. That can be solved by running tanks on a system or by simply keeping a 10 gal. cycled with a bunch of sponge filters in there. Just move water and a sponge filter to a new larval tank for a week or so before you need to put fish in there. Then top up the 10 gal. with new water. Easy. --Andy, the bucket man. "Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886   #40 Online Bookmarks Sharing: Facebook Digg Google del.icio.us StumbleUpon Change Page: < 12345 > | Showing page 2 of 5, messages 21 to 40 of 90 - powered by ASPPlayground.NET Forum Trial Version

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