Originally Posted by diwu13
You should. Won't make a difference. Just make sure the water you WC with isn't too far off from tank TDS/pH. You don't wanna use RO/DI water to straight WC a tank with 500TDS. And don't do more than 10% at once. '
I've done 10% WC's in my 10G tank with straight RO/DI water without berried mamas dropping eggs. My tanks are at ~180TDS.
Typically for me, since my tanks are open top I do tend to wc with straight RO once every week for berried mamas to maintain the TDS in the tank. That's if I care for egg droppage
I do a water change every 2 weeks if I really care for shrimp breeding, in most cases I don't and just do it every week. This is cause my shrimps are always berried and if I cared, I'd never be able to do a wc.