- Free fishing
- Fly only
- Saddle-case CaddisMost likelyLower confidenceNearest relative#16–18 · AdultTiny blackish caddis; fast riffles, early summer.
- Green SedgeAlso possibleLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
- Net-spinning caddis (S. Europe)Also possibleLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
- GrannomAlso possibleNearest relative#14–16 · PupaPupa first, then dries as the adults come off.
- Little Brown StoneMost likelyLower confidence#16–18 · AdultSmall dark stone nymph or adult in early spring.
- NeedleflyAlso possibleLower confidenceNearest relative#16–18 · AdultSmall slender stonefly; clean, cold headwater riffles.
- DamselfliesMost likelyNearest relative#10–12 · NymphSlow-retrieve a damsel nymph along the weed edges.
- Migrant HawkerAlso possibleLower confidence#6–8 · NymphStrip a big hawker nymph erratically near cover.
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.
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Hatch predictions
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Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 as a supporter.
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Backed by regional invertebrate surveys; no sampling on this exact reach yet.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
- Regional Tuscany fishing licence (licenza di pesca dilettantistica, type B annual or type C fortnightly) required, plus the separate ZRS Capodarno daily permit (max €30, cap 40 anglers/day)
- No-kill zone: single barbless hook, artificial lures only, immediate release
- Controlled-harvest zone allows 3 salmonids/day, minimum 25cm.

Terrain map
The full read · show the working · for Brown Trout · confidence 90%
- Trout 2026-02-22 → 2026-12-31
Arno (Casentino)

- Saddle-case CaddisMost likelyLower confidenceNearest relative#16–18 · AdultTiny blackish caddis; fast riffles, early summer.
- Green SedgeAlso possibleLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
- Net-spinning caddis (S. Europe)Also possibleLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
- GrannomAlso possibleNearest relative#14–16 · PupaPupa first, then dries as the adults come off.
- Little Brown StoneMost likelyLower confidence#16–18 · AdultSmall dark stone nymph or adult in early spring.
- NeedleflyAlso possibleLower confidenceNearest relative#16–18 · AdultSmall slender stonefly; clean, cold headwater riffles.
- DamselfliesMost likelyNearest relative#10–12 · NymphSlow-retrieve a damsel nymph along the weed edges.
- Migrant HawkerAlso possibleLower confidence#6–8 · NymphStrip a big hawker nymph erratically near cover.
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.
Start free trial14-day free trial. Cancel anytime.
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Backed by regional invertebrate surveys; no sampling on this exact reach yet.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
- Regional Tuscany fishing licence (licenza di pesca dilettantistica, type B annual or type C fortnightly) required, plus the separate ZRS Capodarno daily permit (max €30, cap 40 anglers/day)
- No-kill zone: single barbless hook, artificial lures only, immediate release
- Controlled-harvest zone allows 3 salmonids/day, minimum 25cm.

Terrain map
The full read · show the working · for Brown Trout · confidence 90%
- Trout 2026-02-22 → 2026-12-31