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clearsky
Mon Jul 12 2010, 09:00pm

Registered Member #5
Joined: Mon Dec 21 2009, 05:25pm
Location: Virginia
Posts: 80
Well Folks: I think I figured out what worked best for me...
After many different trials, different quantities and types of salt, what seems to have worked best for me is to buy a bag of marine type salt, (like for salt water fish) and use that for the salt. I don't have to add anything else and I am getting about a 80-90% hatch now... lighting on the hatching tank helps, and temps in the 80's are better than lower temps.... Finally!!! but like i said.. that is what works for me....
I take a ten gallon tank fill about 1/3, and place 3 different 2 litre containers in it. I stagger the times I re-seed the vessels, so I always have a hatch current. run an airline in each one, and keep them well agitated... I am sure if I used a soda bottle or something similar with a narrow bottom, I would get an even better hatch, but I am very happy with this proceedure..
oh... I keep a small heater in the ten gallon tank, so all the waters stays pretty similar in temps... small lite with a relflector on top....

orchid addict gone to the dogs (and now Killies)
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rickdotson
Wed Jul 14 2010, 06:22pm
Registered Member #30
Joined: Sun Jun 20 2010, 06:29am
Location: Vienna, VA
Posts: 38
I found that using a 10watt heater in the hatchery greatly increased yield and gave me a repeatable 24 hr hatch time. Before that the room temp determined when the eggs hatched. Now my routine is set and my fish are well feed.

Here is a link to a similar model.

http://www.fosterandsmithaquatics.com/product/prod_display.cfm?c=3578+3743+21323&pcatid=21323

[ Edited Wed Jul 14 2010, 06:26pm ]
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Tarcan Cevik
Wed Jul 14 2010, 11:56pm


Registered Member #1
Joined: Sat Oct 31 2009, 11:40pm
Posts: 49
This is great idea Rick. I will use this. Are you using bleach?
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rickdotson
Thu Jul 15 2010, 08:45pm
Registered Member #30
Joined: Sun Jun 20 2010, 06:29am
Location: Vienna, VA
Posts: 38
I used to put a couple drops of bleach but don't go to the trouble now. I am getting good hatch rates at a fixed time.

I used to put the hatcher in a 10gallon like above but it was messy and the hatcher tipped over once and made a really big mess.

See you Saturday.
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clearsky
Fri Jul 16 2010, 10:57am

Registered Member #5
Joined: Mon Dec 21 2009, 05:25pm
Location: Virginia
Posts: 80
BY THE WAY>>>>> WHAT WORKS FOR ONE... MIGHT NOT WORK FOR ANOTHER....
There are always different ways to "trap a mouse"......
That being said..
just to be clear, Yes, I used a ten gallon tank, (that's what I had available ie. empty at the time) but I didn't use any fancy hatcheries.... I put a used juice bottle (like the cranberry juice 2 litre bottle) in for my hatchery..when i had a lot of fish/fry to feed i had 3 bottles running, at different times, and I only filled the ten gallon tank about 1/3 full,,, with the amount in the bottles, and displacement, there was no tipping of containers, nor issues with keeping them all the desired temps.. I put an airstone on the end of a piece of rigid tubing and put a pretty heavy agitation to the airflow.
With going to "marine salt" which is a little more expensive, I found I didn't need to add anything else, and I don't put in bleach... Haven't found the need.
I did clamp a small low wattage incandescent light above, and while I don't know if it had much effect with a "better" hatch, it didn't hurt. I rotated the three hatches about 8-12 hours apart from each other and with using three, I never seemed to have any troubles figuring out which one to harvest.... worked for me.... putting a number "1,2,and 3" on the bottles...
when I was ready to harvest, I simply pulled the bottle out of the tank, took the air out and let it rest for a few minutes... I would place the clamped light to one side of the bottle during this process.... after a while, the bbs seemed to congregate near the bottom on one side... I would simply siphon out the shrimp into a coffee filter in a sink or tub... Once I siphoned out what I needed, and If I was being very frugal, I would put the bottle back in the tank till my next feeding, then I would siphon out any remaining for the next food. I don't know if this step is neccessary or not but I would take the coffee filter with shrimp and dunk it into a small clear cottage cheese container (or a petrie dish works very well too!!) full of fresh water and then with one of my pipettes, I would suck out what I needed to put in the various fry tanks...
as I said.... I don't know whether the extra step of dipping the filter in fresh water to wash them off is needed or not, but my thoughts are that this way I'm not adding any extra salts to the fry tanks..
probably not enough to worry about, but just another step...
No using this process takes a bit extra time, what with the changing over of bottles and such, but when I have a lot of fry, I never have run out of bbs, and no spillages or anything.... plus the extra time it takes to wait for the bbs to settle and such, gives me time to take stock in my tanks.....
again, like i said.... differnt strokes.... works for me....

orchid addict gone to the dogs (and now Killies)
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rickdotson
Fri Jul 16 2010, 08:07pm
Registered Member #30
Joined: Sun Jun 20 2010, 06:29am
Location: Vienna, VA
Posts: 38
Definitely "your mileage may vary". I have my own way of doing things and if something is working for you go for it. The one thing I have learned the hard way is watch what happens and make changes as needed. Step 1, 2, 3 never seems to work until I have made all the mistakes that are not printed in the instruction.

See you tomorrow.

Rick
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