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Is your tank harbouring disease right now?

claude-sonnet-4-6 · created 2026-05-18 06:04 · UTM b-tropical-fish-diseases-ich-fin-rot-velve-2605180604 · coupon SHIP-TROPICALFISHDISEAS-260518

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Ich, velvet, fin rot, columnaris — how to spot each one before it spreads

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If a fish in your tank started scratching against the substrate today, would you know what you were dealing with within the hour?

We've put together a no-filler guide to the four diseases that cause the majority of UK tropical fish losses: whitespot (ich), velvet, fin rot, and columnaris — covering what each one actually looks like, why it happens, and how to respond.

There's also a full quarantine protocol section, because keeping disease out of your display in the first place is worth far more than any treatment.

Snow White Pearl Stingray (Male, 11-12") — one of the hand-selected specimens currently in stock at MTF Aquatics

While you're here — we currently have hand-selected, health-checked tropical fish in stock, every one shipped with our Live Arrival Guarantee.

Read the disease guide →

Browse current stock →

We're fishkeepers first. — Marc & the MTF team