Help with shrimp tank

[Jetxx]

Hi guys, I'm new to shrimp keeping.

Recently set up my planted tank and cycled it for about a week, tested to see if everything is ok, did a 50% water change before ackimating and putting in the shrimps,. These shrimps were from a worm infested tank with no substrate. Had worms might be because of bacter ae and also my wife and daughter overfeeding.. I cleared the worms by filtering them out over organic no bleach tissue. 1 week into the new tank, they started dying.. on closer inspection the shrimplets innards are pinkish, can't really see on the adult shrimps. I read on google that it's a bacterial infection of micrococci and when I see pink, it's probably far too gone to help with treatment.. Hope someone can shed some light as to what is happening with them and possible cures or its something I didn't do right. Substrate is Gex shrimp and plants.

My water parameters

Ammonia 0

Nitrate 0

Nitrite 5.0ppm

Ph 6.6

Attached photos of my tank and the worms which I cleared. Googled the worms and it seems like detritus worms. Roast me for not keeping the hatchery properly.. I'm sorry..

[Slaphppy7]

Welcome to the AC.

How did you cycle the tank?....if you are showing nitrItes, the tank is not cycled, unfortunately. A cycled tank will have 0 ammonia, 0 nitrItes, and some nitrAtes.

What kind of test kit do you have?

[Jetxx]

I'm using API freshwater master test kit.

Sorry typo I've got nitrate at 5.0ppm.
Nitrite is at 0ppm.

[Slaphppy7]

How did you cycle the tank? Did you use seeded media from another established tank?

One week is usually not long enough to cycle a tank, unless you used seeded media.

Which water conditioner do you use? Do you know the ph and hardness of your source water?

[Jetxx]

Added old water from another tank, put in an old sponge where the shrimps were resting on. PH from tap was 8.4. Used API PH down to make it about 6.8 initially. As for water conditioner, its was as no name brand from my betta seller, and had been using it for about 6 months with my betta and guppies without any problems. My betta had been making bubble nest since I used PH down.

[Slaphppy7]

When you run out of that conditioner, get yourself some Seachem Prime, best stuff out there, IMO

Fluctuating ph will cause problems if you are not careful, personally I never mess with trying to change ph...your shrimp would probably do fine with your tap ph

[Jetxx]

Ic. I will try seachem prime soon. It'll be probably a year if I were to continue using the unknown conditioner. As for PH, I gradually decreased it by .2 each time. Betta has been making bubble nest 2 months ago, and guppies seems fine. Seems like they are more hardy than shrimps. But the pink innards of the shrimps, are they and issue?

[Slaphppy7]

Shrimp usually turn pink after they have died, not real sure what you have going on there...the detritus worms probably have nothing to do with it, they're a nuisance, but harmless....what kind of shrimp are they, and where did you get them from?

[Jetxx]

They are cherry shrimps. Neo varieties, from 2 different lfs.

[Slaphppy7]

Their coloring is off, they should be red to bright red....they've faded in color since you bought them?