JBL Nano-Floaty is an floating algae magnet for Nano aquaria with walls of plastic or glass up to 4 mm thickness. The inner section floats. Therefore no need to fish around in the aquarium if the inner part of the magnet accidentally comes apart from the outer part.https://www.aquaristikshop.com/aquaristic/JBL-Nano-Floaty/128604/
- Anders W. wrote about JBL Nano-Floaty in 2017:
A perfect algae magnet for nano aquariums, discrete but effective!