[COCichlids]

How much rock is too much for a 75 Gal tank...

 

[adam0444]

I don't really think there is such thing as too much. What were you thinking of putting in how many lbs?

 

[shellies215]

No such thing as too much rock work. I have over 200 lbs in a 40 gallon breeder.

 

[COCichlids]

Just scaled the rocks i am up to 140 lbs...8, 19.5, 16.5, 19.5, 21.5, 29, and several small pieces at 26.

 

[Chunkanese]

water weighs pretty much the same when you account for the volume they occupy. I wouldnt worry about rock weight.