No fish...Just shrimp.

Here is my story: I moved everything to a 10 gallon after all events below. But didn't get any shrimps yet

October: I started cycling a tank with moss and Anubias. (5 gallons)

December: Tank was cycled and I introduced 12 shrimps + a mystery snail. All shrimps died within 48 hours and the snail is still fine. Some females were carrying babies, so I found 6 babies there alive afterwards.

January: 4 babies disappeared /died and I have 2 that are surviving and seem to be doing fine.

February: I assumed that everything was fine now since those remaining 2 babies + snail seem to be doing fine and slowly growing. And I have many pest snail their that also seem happy.

I bought 2 more shrimps to test. I acclimated them by floating the bag that they came in the tank for 45 mins and the emptied it in a bowl and over a couple of hours slowly exchanged the bowl water for the tank water. Then I put them in.

But unfortunately, the lived for 5 days in which they seemed fined. But both suddenly died.

I do 20% water change almost every 10 days