otherwise, you can use clear pvc like the one from below and build a small water reservoir.
www.bulkreefsupply.com
46.5" Clear Schedule 40 NSF Pipe
Food-safe, clear PVC with slight blue tint These SCH 40 pipes are NSF-certified and approved for use even in human food and beverage applications. Ditch the boring white PVC and create a unique plumbing masterpiece with these high gloss, clear pipes instead. Sold in 46.5" lengths. High gloss...
www.bulkreefsupply.com
