I'd be SUPER careful to use anything in a shrimp tank of which you do not know its ingredients. Was this me, I'd keep this particular fert for my fish-only tanks and either not fertilize the shrimp tank or buy Flourish for it, I'd rather play safe then sorry

If you chose to keep on fertilizing that shrimp tank, I'd strongly suggest to stop by any given pharmacy around you or Vet etc and ask them if you can have a 3cc syringe, eg of the Flourish you'd use 1cc per 10g that way you can dose it very accurately for the shrimp (better for the shrimp and you don't waste any extra fert neither) 1cc = 1ml

Or if you're in TN I can give you some
Yea forget the strips they're so inaccurate that by the time you'd get a NO or Ammonia reading there, you will have noticed that it rose in your tank cause your shrimp are dead. See if you can safe up some $ and get a API kit those are real good and last forever (or you can inexpensively order a Tetra test kit off of Walmart online)
This is Prime
https://www.petsolutions.com/Default...temID=10104360
I'm sorry to hear about the shrimp, thou as I said I had kinda expected that.
Yes your best bet when buying plants from the store not private (eg mine that I sell have never seen fertilizers period). When you buy them soak them in a bucket of dechlorinated water for 1-2 days.
It can really be a "mixture" of causes that come to play here. Was it me, I'd ensure the following
- Monitor your Temp in the tank closely (yes they also don't like wide ranges of Temps)
- Don't use the mystery fert any more - Switch to Flourish (that's the "safe" one I know)
- Keep up weekly w/c with dechlorinated water 1x week about 30% of the tank volume (again proper Temp!)
- Leave your filter alone unless so clogged it does not work (to establish enough good bacteria)
- Keep feeding them but don't overfeed
- For the time being I'd personally not add anything to the tank, no decor, no plants nadda
Non of my tanks get fertilizer, I recently started adding some Flourish to my 10 shrimp farm but that has different issues entirely

Here you can see all my tanks and with the proper balance of lights/ light spectrum and fish (co2) that's what my plants look like and I am happy, my plants thrive well enough to sell regularly so I think that's also a good sign
http://www.tropicalfishkeeping.com/p...hp?userid=1029
If you click on the individual tanks you'll see more detail pictures of all tanks,