cfsindorf

For those that have sumps and big tanks what do you do when you do water changes? I know take water out and replace with same amount.

Do you shut stuff off at tank and take it all from sump or......

Thanks

Craig

I know there are many of these so I will not ask about names. What I would like to know is what do you have on your big tanks and why? If yours would take a header would you replace it with the same thing if it still available?

Thanks

Craig

What are pros and cons of a closed loop system ?

Craig

Can anyone ID these 2 for me?