What is the definition of a tank crash?

[Aquattro]

I would do a large water change right away. Something in there isn't right, and doing small changes won't be enough to dilute whatever it is.

[Wayne]

I have about 60G of water in my tank and sump how much should I replace?

[Aquattro]

Originally Posted by Wayne

I have about 60G of water in my tank and sump how much should I replace?

I'd do 30g and see how that goes.

[Wayne]

Sounds good be back in 5

[Wayne]

OK OK a little more than 5 WOW thats a big water change!

[Aquattro]

Just something to think about, I'd probably do that much as a regular water change
I change 50g every other week, which is about 25%. I'd do more, but my bin is only 50g. I change about 75% in my biocube every two weeks.

[Wayne]

Something to look forward to when I go bigger eh!

I think I will increase my amount changed from now on. My levels are always constant, and my lighting is all new with a 250w metal halide and 135w of PC and I have never really had a lot of LPS or leather growth...