Guide

How to log fishing blanks (and why it matters)

A blank feels like a wasted trip, but it’s some of the most valuable data you can record. Logged well, blanks teach you — and Castwise — what doesn’t work and when.

In short: Log blanks with the same detail as catches — mark, tide, conditions, bait, rig, time — because knowing when fish don’t feed is as useful as knowing when they do. Castwise uses both to personalise your recommendations.

Blanks are data, not failure

Every angler blanks. The difference between anglers who improve and those who don’t is often whether they learn from it. A blank records a real experiment: this mark, this tide, these conditions, this approach — result, nothing. Enough of those and patterns emerge.

What to record

Note the mark and ground, the state and size of tide, the wind and swell, water clarity, the time and light, and what you fished — bait or lure, rig, and how long. The more consistently you capture the conditions, the more your log can tell you later.

Why it sharpens recommendations

Castwise uses your catches and blanks to tune private recommendations around the baits, rigs, tides, ground and seasons that produce for you. If “Help improve Castwise” is enabled, completed outcomes can also enter thresholded community learning, but individual logs, private mark IDs and private region labels are not published. See how it works and the privacy policy.

Make it a habit

Quick logging matters more than perfect logging. A few taps at the end of a session — even a blank one — is enough. The value compounds over a season.

Sources and further checks

Conditions and rules change. Before a session, use the Met Office coast and sea forecast, check RNLI angling safety advice, and verify retention rules in the current UK MCRS table plus the authority for the water you fish. Sources reviewed 15 July 2026; see the Castwise editorial policy.

Castwise updates

Turn this into a plan for your coast.

Use Castwise for mark-by-mark recommendations with the reasoning shown.