VIV over-the-rim dropchecker

Another fantastic product from VIV: Manufactured using the highest quality glass, enhanced and coated with advanced materials and techniques for a beautiful and durable product.
 
Attractive design 
Hangs over the rim and takes up no space in your aquarium
Works perfectly with our lab-grade indicator solution
Designed to compliment beautiful rimless aquariums
Perfect for Nano Tanks where space is at a premium
Always visible at a glance