Plastic box crates at walmart

[jpcampbell123]

Are these safe for fish?

 

[kno4te]

I believe so. Used on my old 120g for a couple of years w/o issues.

 

[tlindsey]

Are these safe for fish?

I have one in my sump with diy wet/dry trickle filter sitting on top of it. Been in the sump for approximately 12 years no issues.

 

[jpcampbell123]

I was gonna do an internal filter for the bass and rays will 2000 bioballs be enough or do I need more?

 

[tlindsey]

I was gonna do an internal filter for the bass and rays will 2000 bioballs be enough or do I need more?
That's probably more than needed.