First one is in my 68l tank i have two power heads rated at 200l ph is this going to be enough?Secondly at the mo the sg of my water is 1.25 i am thinking of getting some ready mixed ro water from my lfs and doing about a 10% water change i no i dont have much in there at the mo but will the difference in the sg be ok?Lastly not sure if this is the right place to ask this but i did read if my shrimp is stressed ie water quality it wiil molt more often and if it moults a lot it may not live as long ???
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