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this little fellow looks like someone has hand painted him

While surfin in the quest to gain more knowledge about shrimp and shrimplets, I stumbled across this chart (it's not my own and I don't claim any credits for it, I don't know who created it either apart from the text within it that mentions a name and site) Same info in a simpler chart. This is great info for an estimation of how long eggs will be held for before hatching. However, this got me thinking. Does the temperature of the water determine the sex of shrimp? In most fish, as in mammals as well, their gender is determined by the presence of a pair of sex chromosomes present in each cell of their body. External environmental factors normally have no impact on their gender. In the case of some species however, it is now clear that the temperature is the crucial factor which controls the gender of their young. Known as temperature-dependent sex determination (TSD), this method of reproduction is most commonly associated with reptiles, such as certain Crocs and turtles which lack sex chromosomes, but also present in some fish. I have apistos that generally tend to develop more males in warmer temps, and more females in cooler temps. Of course temperature is not the only thing that determines the gender of the species, chemicals in the environment also plays a role. But for the sake of simplicity, we are concentrating on temperature only. So my thought was ... does TSD also affect shrimp? I don't know for sure. There are some vague articles on the net, but not conclusive (not the ones I've read). But some articles shed some light of hope that temperature might determine the gender in shrimp (different kind of shrimp, not the ones we keep). There was one forum post (forgotten the site now) of a Singaporean (think hot weather) shrimp keeper who tends to get more male shrimplets than females. This might be a good experiment for some breeders out there especially if they are trying for more males (higher temp) or for more females (lower temp). We are only talking about a shift of 2-3deg C higher/lower. So assuming 24degC is ideal for CRS, then you'd adjust temps to 21-22 for more female shrimplets; or 26-27degC for more male shrimplets. This is only for the 3-4 week duration while the mama is berried until hatching. You don't want to keep them in temps that are not close to ideal for too long. Happy to hear if anyone else has experienced similar or has more insight into the subject.

Hello Guys! I'd like to show You my PRL selection. I took some time to achieve this level. The movie is in Polish language, but feel free to ask any questions. I'll try to post future movies with english translation or post a version of this movie in English.

Starting another DIY build with shallow tanks and still have to start Building a PC fan straight into the acrylic lid haha,its been getting quite hot here now, Im gonna hook it up to a temp controller with the heater when I get the cash, For now its just going to be on in the day or whenever its over 22c and im home. Loving these Kmart tanks, Great value for money and you can really customise them well cause of the acrylic lid. :) Ive already cut holes for the HOB filters to fit nicely. Note: I found you get the cleanest cut using a metal cutting blade on a jigsaw, and you need to cool the blade with water as your cutting or it melts back together and becomes a messy hassle. Getting some really nice crisp shiny colors, Maybe its the few that have just shed. Clear sections are very transparent Whites on most shrimp are very deep, starting to see the nice spots on their back again that made me fell in love with these guys. Its funny, Apart from their obvious black and white stripes typically resembling a zebra, They are also quite a different shape to any other shrimp Ive seen, With a very large head and yeah almost "zebra shaped" too.

Got some dwarf copper rasboras to replace the neons I removed. I still have a few neons I couldnt catch, and will keep a very close eye on them. Update photos:

Yeah just message me the thread and I'll move it

True l could do that. Yes l heard about how hard they are to breed, half expecting that because I'm new to CRS. Even went away on holidays for 3 weeks and the person l got to feed them could only come once a week. On returning, saw that the glass tube was filled with food so they weren't fed at all. Its a wonder they didn't die but instead l had about 50 babies. Then last week 3 more lots of babies. Now l have 4 more berried girls. Thanks for your reply :) Sent from my SM-T810 using Tapatalk