Switching hard water shrimp tanks to distilled water. W test results

So I have hard tap water
Ph 8.1
TDs 440
Gh 12
Kh 7

I am changing my 4 shrimp tanks to distilled water (slowly with water changes) results below.
I put pure distilled water in today but after I lower to desired levels I will re ad minerals to water.
Tips or advice is welcome, here are the results from first water change. Some have more water added than removed due to evaporation.

10 gal caridina tangerine tiger
2 tubs fluval stratum
Before water change
Ph 7.8
TDs 330
Gh 8
Kh 3
Took out 2 gal, put in 2 gal pure distilled.
Results after
Ph 7.6
TDs 280
Gh 6
Kh 2
...........
10 gal neocaridina blue dream
1 tub fluval stratum 1 tub eco complete
Before water change
Ph 8.1
TDs 365
Kh 4
1 gallon out 2 gallons pure distilled in
After
Ph 8
TDs 293
Gh 8
Kh 3
......
10 gallon neocaridina green jade
2 tubs fluval stratum
Before
Ph 8.1
TDs 420
Gh 11
Kh 4
1 out 2 in
After
Ph 8
TDs 330
Gh 8
Kh 3
......
29 gal neocaridina cherry
Large tub half eco complete half crappy
Before
Ph 8.0
TDs 430
Gh 12
Kh 5
3 gal out 4 gal pure distilled in
After
Ph 7.9
TDs 342
Gh 9
Kh 4

 

Cool! I myself am trying to soften the water in a tank (albeit one with no livestock or plants, so I don't have to go nearly as slowly). I don't think I can give you any advice other than what you are already doing...take it slowly. Changes in KH are going to be more stressful than any of the other changes the shrimp are going through, so be particularly careful there.

 

Ok so we had a CRAZY day yesterday. It as the Petco 1 per gal sale so the tangerine tigers, emeralds and blue velvet all got upgraded to 20gal long from 10gal.

I have twin 9yr olds and doing 3 tanks and trying not to kill shrimp was organized chaos. Here are numbers this morning.

29gal cherry
No update

20gal tangerine tiger
Ph 7.4
TDs 184
Gh 5
Kh 2

20 gal emerald jades
Ph 7.5
TDs 263
Gh6
Kh2

20 gal blue velvet
Ph 7.3
TDs 333
Gh 8
Kh 3

 

Cool! I have a random question...does TDS matter much to Neocaridina shrimps? (I understand that is is fairly important for bee shrimp and their kin)

 

Cool! I have a random question...does TDS matter much to Neocaridina shrimps? (I understand that is is fairly important for bee shrimp and their kin)

Neocaridina are way more forgiving than caridina for sure. But yes it does

 

Forgot to post last week so here is the 17th.

Out and in refers to gallons

And reds, blues breeding amazing. And saw first buried tangerine tiger today. Eventhough a little high of perameters for caradina.

Greens are new I only have 5

 

This week...