Originally Posted by
chasar
http:///forum/post/2877863
Well came home tonight to an empty rearing tank. All of the fry have died from this batch. The only thing that I can assume is the temp in my DT is 80 and so is the temp in the 10 gal. hatch tank. the 3 gal rearing tank is 78. I am thinking this is the problem. Does that make sense for the cause of death? I had a lot of death in the 10 gal after they hatched though, so I am still unsure.
I very highly doubt that the 2 degree difference is the cause.
It could be a number of different things.
My guess is that they are not getting enough to eat, or what they are eating is not nutritional enough.
Are you tinting the water green with good phyto? The green water will help keep in keeping the rotifers nutritional, and it also helps with depth perception. Without the green water, the fry seems to stay with their noses against the glass instead of hunting for food. You will want it greened than you think. I sometimes cant even see the fry that are 5-6 days old because I tint the water so much.
Also it must be a good phytoplankton. Anything that you find on an un-refrigerated shelve will not be good enough IMO. Live is great, but dead will also work as long as its stuff that has been kept refrigerated.
Congrats on the new job mboswell, but I will say that the extra banter makes me not want to follow this thread.. A little is OK, but lets not get too off topic if we can help it.
I am still wanting to try and make it up to see your setup and get some information. It may have to be after the holidays at this point.
Anytime.. Its sometimes difficult for me too this time of year to find time.
I have 30-40 (poor hatch) going through meta right now, and a few hundred just hatched last night.. Tomatoes should hatch tonight or tomorrow night. Another batch from the parents of the 30-40 that will hatch Wed-thur. Negripes havent spawned in a few weeks, nor has my second pair of percs.
