I copied this from the krib, well somewhere there hope it helps
if it to long sorry,
Hi everyone, my name is Bill (Pegasus NZ) and I have kept and bred fish for over forty years, with Discus high on my list of favorites. Been reading some of the posts on Brine Shrimp, and having bred fish in large quantities they were always in demand, both big and small. I wrote this article some time ago and it is posted on several sites and published in a few mags. Your members may find my methods useful. I had a problem keeping my fish supplied with a regular supply of live foods, and with Brine Shrimp being high on their list of favorites I decided to produce them in quantity and size, and here is how I did it. BRINE SHRIMP. (Big Ones) Topic is BIG brine shrimp, and you will need the following. One or two spare all glass tanks, a sheet of rigid plastic, (see below) a small stainless steel self tapping screw, a bag of genuine sea salt, and some brine shrimp eggs. Further to this, you will need to read and follow the instructions given if you want to succeed. As promised, here is a great way to grow brine shrimp for all year round use. First a little warning. Live food to tropicals is a "Treat" not an "Everyday" food and should be used in moderation, and not as a substitute for a normal diet. Most livefoods are a laxative to fish, so feed sparingly. Also, prolonged feeding of Brine Shrimp can increase water salinity, so again, take care. If you want to get really serious about this, then discard your regular hatcher for the time being and set yourself up a REAL HATCHERY. You will need an all glass tank, and preferably two if you want to produce large healthy shrimps. You will also need a dedicated air supply that won't be turned off, as this is critical. Tank size is really not important to start with, but if you have a spare 18x12x12 this will do. The second tank should be larger if possible, as this will be your "Growing on Tank." Take your small tank and begin by blacking out about two thirds completely, that is, the front, back, and sides, plus make a top of glass or plastic and black the outer side of this also, never the inside. Blackboard paint applied to the outside is ideal, but should be allowed to completely dry before taking it into your fish room. As an alternative you could stick cardboard or something around the sides. You are going to need to partition the tank off into two areas, with no gaps if possible. Measure the inside dimension from front to back, and the depth. Cut a square of rigid plastic sheet, or similar material that can be cut and trimmed easily. Your local hardware store might have an offcut of sheeting somewhere. You are trying to create a completely dark side of the tank, and a small (One Third) area of non-darkened area, so your efforts in this department will pay dividends. The separator sheet should be a good push fit, and you may have to trim the lower corners to stop it tearing into the silicone seals on your tank, so check this. Try it for size, but don't fit it yet, as you have work to do. Take the square plastic sheet separator and measure around three to four inches from the top, and then find the approx centre. Now cut a hole around one and a half inches in diameter in this position on the sheet. (Its hard talking in imperial, we're metric) The above is not critical, but the position given works. This hole will be the exit hole for the live shrimp. Now cut a disk of the sheet plastic to cover the hole, square, or round, it doesn't matter. While you were at the hardware shop you should have got a small stainless steel self tapping screw. Sorry, off you go. Geez, that was quick. Now, bore a small hole into the small piece you just cut, and another in the separator sheet. The idea is that the small piece acts as a peephole, and when swung into position it should cover the hole and prevent light from getting to the dark side. Take your time, this is important. Now gently position your separator sheet in the tank and check the fit. If all is well proceed with the next step. Hopefully you have some sea salt, and some brine shrimp eggs. A word about the eggs. Hatching rates vary so much, that if you get a bad result, it will be the eggs. Some are from Utah Salt Lake Flats, others from San Francisco, (Over here that is) so try different brands and when you find a good one stick to it. Right, next step. The correct salinity of the water will be on the bag of salts you bought, and should be as for marine fish, or slightly saltier. Calculate the gallons, or litres that your tank holds and follow the directions on your salt bag. Use genuine sea salt not household stuff, Put the correct amount of salts in your tank with the partition removed, then gradually fill with clean un-clorinated water. Rain water is good if its clean, although it could be a little soft in some regions. If you can get offshore a couple of miles out, take a few containers and grab yourself some seawater. It has enough food in it to support your shrimps in the early stages. Land lubbers fear not, just read on. Once the tank is full mix the contents thoroughly making sure all the salt has dissolved. You clued up folks can measure the specific gravity if you like with a hydrometer, but going by the instructions on the bag always works. Slip the partition into position making sure all light is excluded from the dark side of the tank. I have always found I didn't need heat to hatch these little fellas out, but if you live in a cold region introduce a small heater and keep around 65-70deg. Just to be clear to everyone, the tank needs to be absolutely bare, no gravel or UG filters, or outside filters of any sort, clean and bare. Now the shrimps. Take each shrimp singly between the finger and thumb and…. Just kidding. Its surprising how many shrimp a small bottle holds, so don't tip half a bottle in and hope to get a good result. You will be introducing more eggs gradually, over time, so at first only put around a quarter of a level teaspoon full into the dark side of the tank. Get a good free flowing airstone with heaps of grunt and place in the dark side of the tank. The idea here is not to let the eggs settle on the bottom for even a second, and the air must remain on constantly if you want results. The dark side should now be a swirling mass of eggs. You'll find that they get washed up onto the tank sides, so occasionally wipe them off and back into the water. Cover the tank so that it is completely dark. 36 to 48 hours later you should have a mass of live shrimp. Never take shrimp from the dark side. Don't be too anxious, give them a day or so to grow on a little. Harvesting The big decision now is "Do you feed to the fish, or grow on?" Tell you what, why not do both. That spare second tank you have, now is the time to fill it, no partitions, just a straight tank filled with the same type of salt water you filled the first with. Set it up and get the temp right, and the airstone going. If you have space near a sunny window, so much the better. On the hatching tank, turn the air supply off for a while. Have a cuppa till the eggs settle. Again, don't rush this or you'll finish up with mostly egg shells. Take a peek, and if the eggs have settled open the peephole on the separator, while still keeping the dark end of the tank covered. Stand a light of some form at the clear end of the tank and watch. Gradually the LIVE shrimps will swim through the peephole into the lighted area, leaving all the SHELLS behind. The shrimp can be siphoned off with a length of airhose and into a net with a fine cloth laid in it to stop the shrimps going through the net, and those to be fed can be fed direct. They should be a mass of pink in the cloth. If your second tank is some distance away use a jam jar filled with water from the tank to transfer some shrimp for growing on. Brine Shrimp, as with any other living thing that comes from an egg, can survive a certain amount of time on the egg sac, and for the shrimp this time is short, so if you want to grow your shrimp on, then you must feed them. Those of you that have the luxury of natural seawater will have less worries, but others will need to do the following. Another "Never" is, never feed the shrimps in the hatching tank. You can pollute the water in two seconds if you don't take care, so only feed them in the growing on tank (if you do decide to grow them on) , or from the retrieval side of your new hatchery where they are free of shells and this is how you do it. First few days. One or two small drops of #1 Liquifry, or similar fry food. Don't overfeed, you'll pollute the water so quick you'll miss it. Watch the shrimp, watch their size. They grow amazingly quick. At around a half a millimetre long they can start on the prepared food I will tell you about. In some regions they call them "Sea Monkeys" The Growing On Food. You will need, one hard boiled egg, one tablespoon of Bemax, or similar non-flavored health food. Use only the yolk of the egg, and along with the "Bemax" mix into a smooth paste. A few squirts of Liquifry into the paste would not go amiss at this time along with a pinch or two of flaky fish food. Please note: There are other foods in various articles on Brine Shrimp, but this worked for me with excellent results. Form into a small thin biscuit shape and place on a baking tray and pop in the oven under a low heat. You are trying to create a small biscuit of food. Don't burn it, just dry it out completely. Once dry and crisp, remove from the oven and cool. Now take a rolling pin and crush the thing to the finest dust you can, the finer the better. Store the result in an airtight jar. Possibly by now you can see the legs on the shrimps if you look close, or if you are like me with aging eyesight, use a hand lens. Cute little buggers. FEEDING I don't want to preach, but don't overfeed or your efforts will be wasted. Get a match and dip the end into the tank, then into the pounded mixture you prepared. an eighth of an inch of mixture JUST clinging to the match is more than enough. Dip it into the tank and swish around. It should appear milky, with no lumps or large bits. Any large bits will remain uneaten and pollute the tank. A small amount like this in the morning, and again at night is sufficient, and this formula has grown shrimps to ¾" plus, and were seen to be carrying eggs themselves, so it can be done. You may have to feed slightly more depending on the size and stock of your shrimps. Try to feed before it gets too dark. I'm not sure if the shrimp can see in the dark, I suppose they can, but to be on the safe side. Many people feed their fish, then turn off the light and go to bed, and they wonder why they get problems. Having your tank near the window will grow algae, and this will also be a food for your shrimps. Mollies love them, and also like a bit of salt in their water, sea horses thrive on them, as do all tropical marines. As with everything in nature, what we take, we have to give back, so each time you remove eggs from your hatchery tank, pop a few more in to keep the cycle going. Again, don't overdo it. You may have the facilities to move the shrimp to a third tank and grow them even bigger, and the secret here is the food, and natural seawater will assist in your results, as the microscopic life can feed the shrimp. Trials at the University in England showed that polluting the water can happen rapidly, and to ensure your supply lasts and grows, feed half as much as you think they need, and move the adults on as they grow. Use a wooden box with a poly liner, (as mentioned in my other letter) if you have to, but if you follow the steps you should prove successful. Any Questions Good,.. I'll be off then. Any Questions Email me at pegasus-nz@paradise.net.nz . I'll be glad to help. Enjoy every moment as if it were your last. Take care always.
kinda funny coz i used to have Sea Monkeys but they rarely grew to good size.
