Dean’s Fishroom Posted August 5, 2020 Share Posted August 5, 2020 (edited) Some do some don't, but here is why I rinse my newly hatched brine shrimp before feeding to fry. So in a tablespoon of brine shrimp eggs there approximately 420,000 to 450,000 brine shrimp eggs. I use eggs that are supposed to give a 90% hatch rate so let just say around 400,000 hatch in a little less that 2 liters of water. It is generally agreed upon that they hatch in 24-48 hours and I run my hatchers for 36 hours. Now I want you to think about this. . . baby brine shrimp hatch and start swimming about, they also more that likely start feeding on whatever exists in the water be it dead shrimp parts, decaying shells, etc. we know this because you can see growth right from the start. Well. . . if they start eating they also start peeing, pooping, excreting, whatever shrimp do. All this umm stuff is of course just bubbling around in the hatching water, and you want to dump it into your fry tanks? Just for the sake of 30 seconds of rinsing it off? My picture shows what the hatching water generally looks like after straining all the shrimp and shells out, pretty grungy right, and the saltwater ammonia test is way off the chart. Do you still want to just dump that into your fry tanks? Now just take a whiff of that hatching water, you still want to dump that in your fry tanks. I know that there are those on both sides of the benefits to rinse or not to rinse your newly hatched brine shrimp. I"m not on the fence with this, I'm firmly on the side of the fence that I always rinse my newly hatched baby brine shrimp before feeding. What if it makes the difference between having 90 fry surviving from a spawn or 300 fry surviving? I've found that sometimes in the fishroom it's just those few extra minutes here and there that produce the much better final results. Oh, and I can't imagine that any fish wants that shrimp pee, poop, or ammonia flavor on their first meals of their life. Edited August 5, 2020 by Dean’s Fishroom 8 2 Link to comment Share on other sites More sharing options...
StephenP2003 Posted August 5, 2020 Share Posted August 5, 2020 I always rinse. Now my practice of rinsing has been validated by Dean. But that yummy brine poop water is safe to reuse for a hatching? Link to comment Share on other sites More sharing options...
Daniel Posted August 5, 2020 Share Posted August 5, 2020 I am not rinser. Here is my thinking. When I siphon newly hatched baby brine shrimp off the bottom of a cone it is not a lot of water. I was curious just how much this was and it turns out is almost 1/4 teaspoon of baby brine shrimp, shrimp pee, poop, and ammonia flavor. My fry tanks are typically 10 gallons or approximately 37,000 1/4 teaspoons of water. Admittedly, it would take only a few minutes to rinse, but if adding 1/37000th part of water that is a few parts per million ammonia would change the ammonia concentration in the tank by 1 part in 37 billion (assuming the hornwort and other plants in the fry tank didn't absorb the ammonia) perhaps it is reasonable to ask what is gained for the time spent. I am not a master breeder with a long time proven track record of raising fry, so maybe I should begin to rethink my non-rinsing. And you definitely have raised a valid concern over how important details can be in success. But tomorrow when I harvest my baby brine, will I rinse? I would say the odds are little greater than 1 in 37 billion that I will 🙂 Link to comment Share on other sites More sharing options...
Dean’s Fishroom Posted August 5, 2020 Author Share Posted August 5, 2020 34 minutes ago, StephenP2003 said: But that yummy brine poop water is safe to reuse for a hatching? Why? It two liters of water and a tablespoon or so of salt. IMHO successful fish breeding is mostly in the small details. 2 Link to comment Share on other sites More sharing options...
StephenP2003 Posted August 6, 2020 Share Posted August 6, 2020 1 hour ago, Dean’s Fishroom said: Why? It two liters of water and a tablespoon or so of salt. I could've sworn Cory mentioned on a livestream that you reuse the brine water. I might've misheard. Link to comment Share on other sites More sharing options...
Administrators Cory Posted August 6, 2020 Administrators Share Posted August 6, 2020 I did think I remembered dean straining the brine, getting out all the eggs then using the water to hold them for the second feeding? Link to comment Share on other sites More sharing options...
StephenP2003 Posted August 6, 2020 Share Posted August 6, 2020 41 minutes ago, Cory said: I did think I remembered dean straining the brine, getting out all the eggs then using the water to hold them for the second feeding? Maybe that's what I heard, rather than reusing it for a new batch of egg hatching. Link to comment Share on other sites More sharing options...
Dean’s Fishroom Posted August 6, 2020 Author Share Posted August 6, 2020 3 hours ago, Cory said: I did think I remembered dean straining the brine, getting out all the eggs then using the water to hold them for the second feeding? That is what I’ve done, but now after measuring the amount of ammonia I might have to change that practice. Link to comment Share on other sites More sharing options...
Pete Posted August 6, 2020 Share Posted August 6, 2020 How do you rinse yours @Dean’s Fishroom? What sieve do you use? @Cory do you have an Easy Sieve in the works? Ziss SF-1 maybe? Link to comment Share on other sites More sharing options...
MickS77 Posted August 6, 2020 Share Posted August 6, 2020 (edited) @Pete I just remembered this video Dean and Jimmy made. Dean goes over his procedure including the sieves. Edited August 6, 2020 by MickS77 1 1 Link to comment Share on other sites More sharing options...
MattyIce Posted August 6, 2020 Share Posted August 6, 2020 Has any one tried the ZissS SF-1 sieve? if so do you use the .10 or .13? It looks like it has a metal mesh, any opinions on that? At around 30$ a sieve, there is the RUSalty Sieve, has any one tried that or other higher quality sieves? are they worth the extra money compared to the Hobby sieve from Brine Shrimp Direct? What advantages are there? Link to comment Share on other sites More sharing options...
TheDukeAnumber1 Posted August 6, 2020 Share Posted August 6, 2020 (edited) @Dean’s Fishroom I'm confused, I don't often rinse but I to strain... Would you consider strained but not rinsed good or do you consider rinsing still important to remove the little salt water left in the sieve? Also Dean...... how old is your sieve really? ( ͡° ͜ʖ ͡°) BTW I enjoy your content on the channel, thanks for sharing your experience. https://youtu.be/3WxeqzDNtvU?t=1851 https://youtu.be/PVMntyRFaA0?t=800 Edited August 6, 2020 by TheDukeAnumber1 edit Link to comment Share on other sites More sharing options...
pedrofisk Posted August 7, 2020 Share Posted August 7, 2020 On 8/6/2020 at 1:23 AM, Dean’s Fishroom said: That is what I’ve done, but now after measuring the amount of ammonia I might have to change that practice. I have been using @Dean’s Fishroom system of 36 hour hatch, drain all the shrimp & water while discarding the floating eggs, strain and rinse half the shrimp while saving that water, then put the remaining shrimp plus all the water back in for another 12(ish) hours. So far this has worked great for me and I don't see any dead shrimp when I go to strain and rinse the second half. At least they have twice the amount of water per shrimp as before? They may also have a high ammonia tolerance. I found this science paper but have not read the whole thing. Below is the abstract: Effect of pH and Decapsulation on the Toxicity of Ammonia to the Brine Shrimp Artemia franciscana Abstract Artemia franciscana were hatched and tested for tolerance to ammonia at pH 6.5 and 8.5 in artificial seawater with a salinity of 17 ‰. Nauplii seemed to be less tolerant of ammonia at pH 6.5 despite the fact that more of the ammonia is in the ionized form (NH4+). It is suggested that this greater sensitivity is a result of the NH4+ competing with the Na+ during gut transfer. Nauplii hatched from decapulated cysts were more tolerant of ammonia than those hatched from whole cysts, probably because of a greater energy reserve. Link to comment Share on other sites More sharing options...
Dean’s Fishroom Posted August 7, 2020 Author Share Posted August 7, 2020 23 hours ago, TheDukeAnumber1 said: @Dean’s Fishroom I'm confused, I don't often rinse but I to strain... Would you consider strained but not rinsed good or do you consider rinsing still important to remove the little salt water left in the sieve? Also Dean...... how old is your sieve really? ( ͡° ͜ʖ ͡°) BTW I enjoy your content on the channel, thanks for sharing your experience. https://youtu.be/3WxeqzDNtvU?t=1851 https://youtu.be/PVMntyRFaA0?t=800 Is 30 seconds of rinsing going to going to kill you? I rinse mine, I have great breeding and fry rearing success, but as they say, your mileage may vary. It's a choice you have to make. . . When I actually figured it out more closely and yes that sieve is more than 40 years old. Here's an image of the new one I have first time ever out of the box. Note it was a product of West Germany, do you remember the wall between East and West Germany? Oh, and they cost $4.00 each. 4 Link to comment Share on other sites More sharing options...
Paul Posted August 12, 2020 Share Posted August 12, 2020 On 8/7/2020 at 4:16 PM, Dean’s Fishroom said: Is 30 seconds of rinsing going to going to kill you? I rinse mine, I have great breeding and fry rearing success, but as they say, your mileage may vary. It's a choice you have to make. . . When I actually figured it out more closely and yes that sieve is more than 40 years old. Here's an image of the new one I have first time ever out of the box. Note it was a product of West Germany, do you remember the wall between East and West Germany? Oh, and they cost $4.00 each. They still cost $4.00 each I bought them after I saw your Brine Shrimp 🦐 101 video. Link to comment Share on other sites More sharing options...
pedrofisk Posted August 12, 2020 Share Posted August 12, 2020 I have that kind of sieve but only from about 2005 so post Berlin Wall. However I just discovered a small hole int he bottom! Now it'll never make it to 40 years old and I have to get a new one. So much for handing it down to my kids. Link to comment Share on other sites More sharing options...
Chandra Posted August 13, 2020 Share Posted August 13, 2020 (edited) @Dean’s Fishroom I was able to get brine shrimp hatched great as per your instructions. I bought a similar sieve from brineshrimpdirect and i love rinsing shrimp with it. Edited August 13, 2020 by Chandra Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now