Vigorously scrubbing your faux crops that has a medium-energy brush should be ample to dislodge any algae that can not be taken off by hand. A remaining rinse less than reasonably hot water will remove any remaining algae. Aquarium vegetation should be cleaned the same as almost everything else inside https://mariolnlie.blogsidea.com/43745240/aquarium-care-uae-for-dummies