Wow, in a 24" wide tank you will have no problem keeping a pair of Hystrix or maybe even reticulated in there for 5 years...Maybe even longer. Motoro's maybe 2 years for female 3 for male?
I have never seen a Hystrix that would be too large for a 24" wide tank. Even 1 that is 12-14" diameter (if they ever get that big) would probably not touch the sides.
If you use the 125 which i would bet is 18" you could still get 3 years or so out of a Hystrix, as long as you maintain a good waterchange schedule.
Now i would have to agree, sand is too thick!
