Please help, tanks not looking so good

[ckmullin]

How long has the system been up and running? Seems like nitrate is high for a SW tank. FW it'd just be perfect though.

[andreethegiant]

Almost 8 months, still pretty new.

[andreethegiant]

And the nitrates went up when I upgraded, I was thinking from the old sand possibly..

[ckmullin]

It seems from my reading a rule of thumb is to ditch old sand as it will hold items exactly what you are having an issue. Perhaps some small dead critters were in the sand.

[andreethegiant]

I got rid of the old stuff and put all new sand in, I just thought maybe it came from the sand getting stirred up when I took the rocks and what not out of the old tank

[ckmullin]

Hum...don't think suspended sand particles would cause something like that. Other members with more experience I'm sure will give you a hand.

[andreethegiant]

Okay thank you