What's eating my microsorum pteropus 'windelov'?

Java fern 'Windelov' shares the same sturdy, unpalatable foliage as the parent species, making it largely pest-resistant. Black beard algae and green spot algae are the primary threats, accumulating on its distinctive finely branched tips. Herbivorous fish rarely target it, but algae can overwhelm tips in low-flow, high-nutrient tanks.

Dark tufts colonise the branched frond tips first, obscuring the ornamental silhouette Spot-treat affected tips with Excel via syringe; improve circulation around the fine tips; add Siamese algae eaters

Hard green discs on older frond sections, particularly under bright light Shorten photoperiod; ensure adequate phosphate; use nerite snails for grazing

Occasional surface grazing on older or dying fronds; rarely damages healthy tissue Manual removal; assassin snails; ensure plants are healthy so tissue does not soften and attract snails