Do algae eaters completely remove algae?

No — and any that claims to is overselling. Algae eaters reduce and manage algae, but they can't fix the underlying causes: excess light, excess nutrients and infrequent maintenance. Treat them as helpers alongside sensible lighting periods, water changes and not overfeeding, not as a substitute for them.

Which algae eaters should I avoid?

The common pleco (grows to 40-60 cm and produces huge waste) and the Chinese algae eater (becomes aggressive and stops eating algae as it matures). Both are sold small and cause problems later. Stick to bristlenose plecos, otocinclus, nerites and Amano shrimp, which stay useful and suitably sized.

How much do algae eaters cost in the UK?

Nerite snails and otocinclus start at about £2-£4, bristlenose plecos and Amano shrimp £4-£8, and fancy pleco strains more. A small mixed clean-up crew of a few species usually works better than one of any single grazer. Prices on this page are live: what you see is what's in stock today.

Do algae eaters need extra food?

Usually yes. A well-maintained tank doesn't grow enough algae to sustain a grazer full-time, so supplement with algae wafers, blanched vegetables (courgette, cucumber) and, for plecos, driftwood to rasp on. A starving algae eater is a common and avoidable problem — feed them properly even in a clean tank.

Is it safe to buy algae eaters online?

Yes. Fish and invertebrates alike ship in oxygen-charged bags inside a polystyrene-insulated box with a heat pack in winter, handed to a licensed live-animal courier, dispatched Tuesday-Wednesday so they never sit over a weekend. Every delivery is covered by our photo-proof live arrival guarantee.

Algae Eaters for Sale UK

Best algae eaters for sale UK — Bristlenose Plecos, Otocinclus, Siamese Algae Eaters, Nerite Snails, Amano Shrimp.

303 products available

This page collects the fish and invertebrates that genuinely help control algae — grazers that earn their place in a maintenance routine. Everything listed is live stock held in our own system, dispatched with a licensed live-animal courier under our live arrival guarantee.

Real algae grazers include bristlenose plecos, otocinclus, Siamese algae eaters, nerite snails and Amano shrimp. Each targets slightly different algae, and none is a magic fix — they supplement good tank management rather than replace it.

Read the notes linked below before ordering. The classic mistake is buying a 'common pleco' or Chinese algae eater that grows large or stops eating algae as an adult; the species on this page are chosen because they stay useful and appropriately sized.

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Follow each link for the latest terms before ordering.

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Frequently asked questions

It depends on the algae and tank size. Bristlenose plecos are the best all-round algae-eating fish for most tanks; otocinclus are superb on soft green algae in mature planted tanks; nerite snails clean glass and hard surfaces without breeding; Amano shrimp tackle hair algae. Often a small mixed clean-up crew beats any single species.

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Complete Algae Eaters Care Guide

Tank setup, diet, water parameters and tank-mate compatibility, backed by cited sources.

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