Hello thanks for the reply! Idk why but for some reason or another I thought it was diffedent lol lrobably bevause of the oder it was in lol :") I thought I would need to raise it because tje ph swi.gs pretty good when I let the water sit for around 2hours. It goes from 7.4 to 6.8
Meh.. That's probably just dissolved gasses being shifted around, probably mostly CO2 absorption. I wouldn't worry too much about it, and raising the KH slightly won't really change that swing much.. I wouldn't raise KH very high, as you want to keep neons.
I would check the KH and GH after that sit, to make sure that hardness isn't precipitating out after sitting.
fhe fish I will have Re neons otos corys and some blue dream or velvet shrimp
Some cautions here:
It's not always safe to keep neo shrimp with tetras... Sometimes it works out, sometimes not. they will definitely predate on shrimplets. It is unlikely but they may pick apart an adult shrimp. Be sure to have lots of hiding places and keep in mind that shrimp are fish food for most omivores and carnivores.
Pretty much the only 100% shrimp-safe fish are strict herbivores (ie: otos).
I'd also caution that shrimp don't always do well with EI methods.. the large 50% water changes can cause big enough TDS shifts to kill them.. again, sometimes this works out, sometimes not. Neo's are more hardy in this respect than more sensitive shrimp like crystal shrimp.