JBL ProClean AquaEx 20-45 | Green Aqua
JBL61427 Substrate (gravel) cleaner for cleaning aquariums with 20-45 cm in hight Sophisticated and highly effective gravel cleaner to siphon off waste in aquariums from 20 cm height upwards Use: shake the gravel cleaner, let water flow into the bucket, siphon the waste out of the substrate, close the stopcock when finished