−14%
Easy
Neritina sp. spotted - Aquarium Snails
20–28°C · pH 7–8.5 · 10L
£4.29£4.99
Black helmet nerite snail with a deep black shell. Easy, peaceful algae grazer for community and nano tanks from 10 L at 20-26C.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Neritina sp. black helmet
Neritina sp. black helmet are a shoaling species — they need 6+ to feel safe and show their full colour. Larger shoals stay calmer, eat better, and look stunning.
Black helmet nerite snail with a deep black shell. Easy, peaceful algae grazer for community and nano tanks from 10 L at 20-26C.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Nerite snails are the ultimate algae-eating machine. They devour green algae, diatoms, and biofilm without eating your plants — and they can't breed in freshwater.
Maintain these water conditions for optimal health and vibrant colors
Dark, glossy and quietly industrious, the black helmet nerite is the one to choose when you want algae control that melts into the aquascape. Neritina sp. black helmet carries a deep black, dome-like shell on a body just 1.5cm long, and it spends its life methodically stripping algae from glass, hardscape and plant leaves across every region of the tank. No drama, no demands — the Easy care rating is well earned, and the cleanup value per snail is excellent.
Give it 20–26°C, a pH of 7.0–8.0 and hardness between 5 and 20 dGH, and it will get on with the job for its roughly two-year lifespan. From 10 litres upward almost any aquarium qualifies, and as a strict herbivore it never bothers a single tankmate. The compatibility list reads like a classic community roster: small tetras, rasboras, livebearers, Corydoras and Otocinclus all coexist with it perfectly, as do peaceful community fish in general. What you must screen out are the snail-eaters — loaches, pufferfish, large cichlids, crayfish and predatory fish in general, for whom a nerite is simply a packed lunch in a black shell.
Temperature is the one spec worth a second glance: at 20–26°C this nerite tops out slightly cooler than some tropical tanks run, so check your heater’s set-point before ordering. Beyond that the demands are minimal — alkaline pH, moderate hardness, any tank upwards of 10 litres. For aquarists balancing a busy community, an algae grazer that asks for nothing and bothers no one is the easiest stocking decision of the year.
One or two black helmets handle a small tank’s algae comfortably; add more gradually rather than all at once so the grazing keeps pace with regrowth. Confirm no loaches or puffers share the water first, and consider pairing the order with shrimp or other peaceful snails to build the whole quiet workforce in one go. Your Neritina sp. black helmet arrives via licensed live-animal courier anywhere in the UK, with our live arrival guarantee.
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