Aquarium Guides

A beginner's guide to your first aquarium: what to buy, how to cycle before any fish arrive, which numbers to watch, and the weekly routine.

A calm, week-by-week plan for a new aquarium: cycle the filter, stock in waves, and reach a stable tank by day 90 without the beginner crashes.

Aquarium basics for beginners: why you keep water not fish, plus tank size, filtration turnover, the nitrogen cycle, and a steady maintenance rhythm.

Aquarium emergency triage for the first hour: gasping fish, ammonia spikes, dead filters, power outages, and exactly what to do minute by minute.

The chemistry under aquarium cycling: why pH decides how toxic your ammonia reading is, and why nitrification quietly consumes your carbonate hardness.

Aquarium water test results explained: read ammonia, nitrite, nitrate, pH, KH, GH, and temperature as one system, and what to do when a number spikes.

A step-by-step fishless cycle: dose ammonia, read the two spikes, and prove your filter is ready before a single fish goes in.

Aquarium water chemistry made simple: what pH, KH, and GH do, why stability beats chasing numbers, and how to keep them steady between water changes.

How aquarium filters work, how to pick the right type and flow for your tank, and how to clean the media without crashing your cycle.

PAR-first planted tank lighting: choose intensity by what you grow, set photoperiod and spectrum, kill shadows, and hold algae back without overspending.

Aquarium CO₂ injection made safe: how carbon, light, and nutrients balance, which system to buy, and how to dial it in without gassing your fish.

Compare online aquarium plant stores, local hobbyists, tissue culture, prices, pests, shipping, quarantine, and how to choose healthy plants.

A practical planted-aquarium guide to choosing easy, advanced, low-light, CO₂, foreground, stem, shrimp-safe, and aquascaping plants.

Diagnose aquarium plant deficiencies by leaf age and symptom: yellowing, pinholes, twisting, and stunting. Read the pattern, then fix it safely.

Grow a thriving planted aquarium: substrate, plant placement, feeding and dosing, pruning for density, and beating algae. Beginner-safe, expert-deep.

The honest trade-offs between a fish-only (FOWLR) saltwater tank and a full reef: cost, difficulty, equipment, and the order to buy things in.

How to cycle a saltwater or reef tank with live rock: the nitrogen cycle, an ammonia source, what to test, and how to know it's safe to add your first fish.

What every reef parameter means and where to keep it: salinity, temperature, pH, alkalinity, calcium, magnesium, nitrate, and phosphate.

How to quarantine new saltwater fish against marine ich, velvet, and brooklynella: the QT tank, treatments, timelines, and the buy-clean shortcut.

How to place corals by light and flow, PAR targets for softies, LPS, and SPS, dipping new corals for pests, and acclimating them without bleaching.

Compare reputable online coral and marine fish vendors, captive-bred vs wild, dipping and quarantine, live-arrival guarantees, and 2026 price ranges.

Why reef alkalinity falls while calcium looks steady, what magnesium is really doing, and the order and rate to correct the big three safely.

Choose compatible fish: school sizes, swimming zones, aggression, temperature and hardness matching, and honest bioload math for a peaceful community.

Acclimate new fish, shrimp, and coral safely: temperature floating, drip acclimation, plop-and-drop for shipped livestock, and the first 24 hours.

How much and how often to feed aquarium fish, why overfeeding causes cloudy water, algae, and ammonia spikes, and how to stop meals becoming pollution.

Identify every common aquarium algae and bacterial bloom on sight, understand the biology behind it, and fix the cause instead of scrubbing.

Quarantine new fish, spot the early warning signs, and treat disease without wrecking your tank. A practical freshwater fish health guide.

The complete AquaLens feature reference: every tab, lab, and tool for freshwater and reef tanks, from test scanning to predictive alerts and the web app.

Aquarium logging done right: what to log, how to keep readings consistent, and how clean records make your trend charts and alerts genuinely trustworthy.