Rainbow Stone -7 1/2" - Large PENN-PLAX Sale! from 1799 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Beautiful Rainbow Rock Features Swimm Throughs and Hides For Small To Medium Sized Fish. Qty available:1 SKU:10646 Aquarium Fish Rainbow Stone -7 1/2" - Large Small Animal Tank Decoration Tweet