Rotifer Culturing

[Noof]

Ok I get that most people batch culture their rots.
what I would like to know is if anyone out there is continuous culturing them with filtration?

I have intent to set up a filtered rotifer system and would like to know the flow that Rots can tolerate?
Ie: 2 L per min across 100 cm2 rotifer mesh? ( 10 x 10 square)
or 1 L per min across 1000 cm2 rot mesh (100x10 square?)

Anyone give me any ideas of ballpark on this one?
Oh and incidentally this is Adelaide South Australia so we may well be 5 years behind the rest of the world! !

thanks
Nathan

 

[jacob30]

Get this: http://www.aquaticeco.com/index.cfm/fuseaction/product.detail/iid/12536/cid/3280

let me know how it works.

 

[jacob30]

or:

http://www.reed-mariculture.com/rotifer/icrs/index.asp

 

[Noof]

Hmmm at 2 and a half grand per system... I'll take three!
Perhaps not??

I will have a go at one??... More as it happens!

 

[Noof]

I would also like to give a little background on my issues here.
I can keep rots alive in small numbers, probably enough to raise one batch of clowns at a time. They just dont seem to really boom for me?

Most times when I try restarting a culture it crashes so I get left using the same old ****ty culture which I have just changed 30% of the water on?
?
?

feeding Yeast some days and phyto others.

So what I am trying to do is get a handle on a flow through system so I can keep using the same culture over and over. I am very interested to hear anyones comments?
If you dont want to give rotifer culturing advice to the world please PM me as I am at a dead end other than this flow system?
Thanks
Nathan

 

[David M]

I have a highly scientific and technical continuous culture system which I hesitate to share as it so ingeneous, but I suppose in the name of aquaculture I'll submit Here it is: 5 gallon buckets on the floor. Ambient room temp (78-80f). Airline. SG 1.016 just because that is what I keep larvae at. Harvest 1 gallon twice daily, if you don't need the rots return them to the bucket but the water change is necessary. Keep a green tint to the water using Reeds Nanno 3600. Once a week dump the culture into a clean bucket. That's it. This culture has been going for just under a year and has raised about 3000 clowns so far. I keep 3-5 buckets depending on density and need.

Someday I suppose I will worry about high density culture but for now this is pretty darned simple and provides all the rotifers I need.

 

[ediaz]

Thats a great idea the change of buckets, instead of cleaning and siphoning tranfer to a clean tank.

 

[Kathy55g]

Working on a much smaller scale, I use kitty litter buckets when I want a lot of rots, milk gallon j..s when I don't. With the gallon containers, I don't bother to clean them. Just rinse out another one from the recycle bin at my house.

 

[ediaz]

I don't have a cat

J..S ?? jars?

 

[David M]

j...u...g...s is my guess.

As for changing the buckets, that really makes a difference. A fresh clean bucket will really perk up the culture, I can let it go 10 days/ 2 weeks but it starts to get thin. If I change it every week it does very well.

 

[aomont]

What kind of salt do you use to make saltwater ? Same as for the fishes ?
Anderson.

 

[Kathy55g]

Inside joke. They are the plastic gallon containers that milk comes in. We always have some empty ones around the house. Before they hit the recycle bin, some of them will be used to contain some rotifers for a while. No actual cleaning required, aside from rinsing out residual milk before, and gunk after the rots.

 

[Kathy55g]

<a href=showthread.php?s=&postid=8452242#post8452242 target=_blank>Originally posted</a> by ediaz
I don't have a cat

Yes, jars.

I don't have a cat, either, but I have a neighbor who does. You have to take a walk around the neighborhood on recycle morning, if you want to be truly efficient at this job.

 

[ediaz]

LOL

I could try that but theres a guy in a big green noisy truck who always beats me to it.

I always make sure I have some "plastic gallon containers that milk comes in" around .LOL

Ed

 

[aomont]

Please, comment on this:

What kind of salt do you use to make saltwater ? Same as for the fishes ?

I was reffering to the saltwater you culture rotifers in. Is the salt you use the same for the fishes aquarium ? Or any regular salt just like for BS ?

Anderson.

 

[Atticus]

<a href=showthread.php?s=&postid=8457098#post8457098 target=_blank>Originally posted</a> by ediaz
LOL

I could try that but theres a guy in a big green noisy truck who always beats me to it.

I always make sure I have some "plastic gallon containers that milk comes in" around .LOL

Ed

You guys are killing me tonight...

I also used to use the empty salt bucket method. Worked great. I added heaters when rot demand was higher. Just drill holes through the lid and it stays sterile too.

 

[Kathy55g]

I use the same salt for everything.