A week at 84 degrees F...
- Thread starter Kathy55g
- Start date
lclzgarling
New member
cool, they look good
CarlPeter Schmiedel
New member
Kathy,
amazing! Did you increase O2 concentration in the larvae tank to make sure there is no O2 limitation? I would have not dared to run that tank with 29 degrees Celsius, but now is will.
As their metabolism must be turning quite fast, did you have the impression they feed more / quicker and you had to add more food?
On what day did you switch them the Otohime?
amazing! Did you increase O2 concentration in the larvae tank to make sure there is no O2 limitation? I would have not dared to run that tank with 29 degrees Celsius, but now is will.
As their metabolism must be turning quite fast, did you have the impression they feed more / quicker and you had to add more food?
On what day did you switch them the Otohime?
thanks everyone.
Peter, I have a single airstone in the center of the tank with the larvae/fish. In fact I run them continuously in all the fish tanks except for the broodstock. I haven't found a need for more. I have been thinking of getting an O2 test kit, but haven't gotten around to it.
I started a tank with a much larger hatch(about 600 larvae) at 84 degrees in a 20 gallon tank, but I had to decrease the temperature because I ran out of rotifers, and needed to slow them down. It did not appear that there was a problem with low oxygen.
Peter, I have a single airstone in the center of the tank with the larvae/fish. In fact I run them continuously in all the fish tanks except for the broodstock. I haven't found a need for more. I have been thinking of getting an O2 test kit, but haven't gotten around to it.
I started a tank with a much larger hatch(about 600 larvae) at 84 degrees in a 20 gallon tank, but I had to decrease the temperature because I ran out of rotifers, and needed to slow them down. It did not appear that there was a problem with low oxygen.
Yes, I think they eat more when they are metabolizing faster. I added rotifers whenever the population seemed to decrease. I was home over the American Thanksgiving holiday, so it was easy to moniter them while I cooked the turkey, etc. I started with a light sprinkling of Oto A on day 3 or 4, I cant remember. Then a little more until I was sure they were eating it. I continue rotifers to this day (9) and keep up with Oto A overlapping. I started bbs at day 5, but I could have started it earlier. I just don't like doing the hatching of the bs. Lazy.
Peter Schmiedel
New member
Kathy,
you see a conection between the higher temp and the appearing of missbaring? Is there any other change you made where we can trace the missbaring to? Maybe the need of more food due to the higher metabolism was finally not fully covered?
They show really nice little full bellies
you see a conection between the higher temp and the appearing of missbaring? Is there any other change you made where we can trace the missbaring to? Maybe the need of more food due to the higher metabolism was finally not fully covered?
They show really nice little full bellies
Yes I am feeding them 5 times a day as per Luis' suggestion. I don't think they were hungry at any time in their short lives.
I am concerned about the misbarring. I have had some in previous batch. I attributed it to the large nest and lack of rotifers, but this hatch was well nourished. The only thing that I can think of is that the dry food I have is beginning to deteriorate perhaps, and yet they are growing so fast....
We will have to wait and see. It is only 16 days, and perhaps the missbars will fill in later. I think that if they had been kept at 78 degrees, one could only expect that they would be completing metamorphosis at this time.
I am concerned about the misbarring. I have had some in previous batch. I attributed it to the large nest and lack of rotifers, but this hatch was well nourished. The only thing that I can think of is that the dry food I have is beginning to deteriorate perhaps, and yet they are growing so fast....
We will have to wait and see. It is only 16 days, and perhaps the missbars will fill in later. I think that if they had been kept at 78 degrees, one could only expect that they would be completing metamorphosis at this time.
Peter Schmiedel
New member
Kathy,
I had a recently discussion with the UK company http://www.new-era-aquaculture.com/ about feeding frey and brood stock. To my personal surprise they studies implied that the food the female taks up to two hours prior spwaning has a major impact on egg size, yolk sack and survival of the frey. Maybe sometimes it makes a difference how short prior spwaning we feed the brood stock and what aditives we are using?
The company has a spray to coat pellets etc which I will try to evaluate soon.
Quote from their website:
The Marine Liposome Spray is rich in vitamins and antioxidants and blended with premium fish oils, natural pigments and nutraceuticals that assist by binding to tissues of frozen foods to enhance its nutritional profile.
Benefits:
• Unique product that is a simple and effective
addition to habitual feeding regimes
• Prevents the rapid degradation of thawing foods.
End Quote
As my intensive business traveling of the last 2 years ends now I will have more time to spend for breeding activties.
I had a recently discussion with the UK company http://www.new-era-aquaculture.com/ about feeding frey and brood stock. To my personal surprise they studies implied that the food the female taks up to two hours prior spwaning has a major impact on egg size, yolk sack and survival of the frey. Maybe sometimes it makes a difference how short prior spwaning we feed the brood stock and what aditives we are using?
The company has a spray to coat pellets etc which I will try to evaluate soon.
Quote from their website:
The Marine Liposome Spray is rich in vitamins and antioxidants and blended with premium fish oils, natural pigments and nutraceuticals that assist by binding to tissues of frozen foods to enhance its nutritional profile.
Benefits:
• Unique product that is a simple and effective
addition to habitual feeding regimes
• Prevents the rapid degradation of thawing foods.
End Quote
As my intensive business traveling of the last 2 years ends now I will have more time to spend for breeding activties.
