My son (9 years) absolutely wanted this game for Christmas, despite the failure of most of his classmates. I was very dubious when we put the species sawdust in water and quite unhappy to have a model without cover, I really was afraid the children throw qqchose in the aquarium and we have sawdust Egg and mysteries everywhere. Finally we quickly saw that we would not have the required temperature (in winter and in a room in Normandy) then hop I put to 10 cm below a desk lamp and lighting in the day without interruption for 3 -4 days (not good for the planet ....). Finally we soon had 10 little tricks that moved, grew 6 2 4 triops and fairy shrimp. To remove sawdust from the beginning that atendance to "rot", I made small nets with coffee filter tips, so I removed the + wholesale and then I ended up with the syringe from the package. I think it would have taken separate species at once, it was not specified; shrimp have disappeared, probably eaten. 2 triops remained that grew at an impressive rate, my son was packed. I think he should also have been separated without waiting for a "violent behavior"; we did not and 1 triops was devoured by its congener. Harsh law of nature, but my son did not like it at all .... the final 1/2 after one month we still have 1 triops nearly 3 cm swimming at full speed and is the king of looping. Finally, an interesting box as soon as one arrives to the unborn corny, I just regret not having separate animals from the start, we would have loved to keep alive fairy shrimp