Try to get a picture of the critters and post for ID - some are OK like copepods but others like planaria can be detrimental to baby shrimp I hear.
I've managed to get mine to around 20°C/68°F by leaving the tank lid open and turning the heater off altogether. I've realised that the lowest...
Sounds like you are doing ok if you've got berried females and babies in there.
To answer your questions:
1. I feed mine only twice a week, but as long as they are clearing it you shouldn't have any water issues. The only food I know of that can be left in without concern is snowflake food, but...
Lucky find!!!
Crushed coral elevates the pH (and TDS) by increasing the buffering capacity i.e. carbonate and bicarbonate which stabilises the pH and stops pH dips and swings. It may need replacing at some point tho no idea how long it will last as I've never used it.
Cherry type shrimp prefer...
You might want to think about why you have ammonia present - shrimp are more sensitive to it than fish - altho API can often look like 0.25 ppm when actually negative. Also nitrate of 40 ppm is quite high - aim for under 20 and under 10 ppm is preferable. You are right about not over-reacting to...
Not sure but when I want to know about what's likely to happen with adding stuff to a shrimp tank - I write an email to the manufacturers and ask them and they are usually very good at getting back in touch.
It would be helpful in the meantime to know what your water parameters are like - tank...
Looks like an infection of some sort however I'm not familiar with the Kanaplex you mention so can't comment on that.
What are your actual water test readings? Normal for one fish might not be normal for another so always handy to have the actual numbers and some fish are more sensitive to...
I'd aim to get UK bred shrimp as the imports can suffer with all sorts of maladies such as fungal and bacterial infections. They have to be transported a few times before they reach the final purchaser by which time they are quite stressed and open to infections etc. If purchasing from a UK...
They look pregnant to me and not wanting to put a dampener on this first experience, but what are you going to do the next time and the time after that when they drop fry every 4-5 weeks?
When they "square off" they're not far from dropping the fry and they can carry sperm packets for up to 6...