Aquarium care
for nerds.
We tell you exactly what to buy — build a complete tank kit, look up species, and get unbiased product picks. No fluff, no fish-store upsells.
Tools
Interactive calculators that turn guesswork into a shopping list.
Tank Builder
Find every piece of gear for your setup — and why — in 30 seconds.
Try it →Stocking Calculator
How many fish can your tank actually hold? Stop overstocking.
Try it →CO₂ Calculator
Dial in bubbles-per-second and the right kit for a planted tank.
Coming soonCare guides
Straight-talking guides on tank size, water parameters, diet, and the mistakes to avoid.
Shrimp Tank Mates
The safe companions for a shrimp tank — and the fish that quietly eat the colony.
Neocaridina vs Caridina
A water-first comparison of the two dwarf shrimp families — and which to start with.
Freshwater Shrimp Care
Everything a beginner needs to keep — and breed — freshwater dwarf shrimp.
Planted Aquarium
Light, substrate, plants, cleanup crew, algae — the complete planted-aquarium hub.
Good Beginner Fish
Nine hardy, peaceful freshwater species that are genuinely easy for a first aquarium.
Freshwater Fish
How to choose and stock beginner-friendly freshwater species — the hub to every care guide.
Algae Types
An identification guide to the different types of algae in aquariums and what each one signals.
Algae Control
Why algae happens and how to beat it — balance, cleanup crew, and a step-by-step fix.
Algae Eating Fish
Best algae eating fish for an aquarium, picked by tank size and algae type.
NICREW vs Hygger
Two of the most popular planted lights, head to head — and which one to buy.
Best Planted Tank Light
How to choose a planted-tank light — plus budget-to-mid-tech picks that won't just grow algae.
Pea Puffer
The world's smallest puffer — tiny, charismatic, and pickier than beginners expect.
Kuhli Loach
Peaceful eel-like bottom dwellers — keep a group over sand and they come out of hiding.
Nerite Snail
The best algae eater that can't overpopulate — won't breed in freshwater.
Chili Rasbora
Tiny glowing-red nano schoolers — stunning in a soft, planted blackwater tank.
Shrimp Tank Setup
From empty glass to a thriving colony — every step, in the right order.
Cherry Shrimp
The easiest freshwater invertebrate to keep — and the best entry into the shrimp hobby.
Amano Shrimp
The hardest-working algae eater in the hobby — a planted-tank essential.