Disaster!

[intarsiabox]

Originally Posted by Timbits

Anyways I think I found the culprit. I tested the tds of my ro and it was 17!!! Omg I guess my membrane is finally done cuz I replaced all the other filters like a week ago! Argh I'm so mad.

How bad is this? Going to replace the membrane today. Should I do a large water change after I make new water? How much should I do? My tank volume is roughly 40 g I think.

My Sps and lps were looking better today though sigh...

Lots of people use tap water with much higher TDS, I don't think that is the issue.