# Fishkeeping at Home

> Practical freshwater aquarium equipment and care guidance for UK homes: planning, filtration, water tests, heating, lighting, maintenance, aeration and aquascaping.

Freshwater only; marine reef systems are outside the publication's scope. Product comparisons explain documented specifications, exact-model fit and operating limitations. Articles provide sources and practical checks. Calculators show their assumptions and limits; they do not determine fish stocking, diagnose illness or calculate medication doses.

## Topic hubs

- [Start a freshwater aquarium](https://fishkeepingathome.co.uk/start-here/): Plan the space, choose the essentials and give your filter time to mature.
- [Filters & flow](https://fishkeepingathome.co.uk/filters/): Match filtration, media and circulation to the aquarium you actually have.
- [Water & testing](https://fishkeepingathome.co.uk/water-testing/): Know what a kit measures and what your results can tell you.
- [Heating & temperature](https://fishkeepingathome.co.uk/heating/): Choose for your room as well as your tank, then check the temperature.
- [Lighting & plants](https://fishkeepingathome.co.uk/lighting/): Find the right coverage and a manageable routine for a planted tank.
- [Cleaning & maintenance](https://fishkeepingathome.co.uk/maintenance/): Make water changes, glass cleaning and filter care easier to keep up.
- [Air & circulation](https://fishkeepingathome.co.uk/air-and-pumps/): Plan aeration, safe airline installation and a tested power-cut backup.
- [Aquascaping equipment](https://fishkeepingathome.co.uk/aquascaping/): Choose a suitable bed, calculate the quantity and feed plants thoughtfully.

## Getting started and understanding water

- [Freshwater aquarium equipment checklist](https://fishkeepingathome.co.uk/guides/freshwater-aquarium-equipment-checklist/): Essentials, what a kit may leave out and how to plan the setup.
- [Fishless cycling a freshwater aquarium](https://fishkeepingathome.co.uk/guides/fishless-cycling-a-freshwater-aquarium/): Establish biological filtration before adding fish, using measured results rather than a fixed calendar.
- [Testing UK tap water before choosing fish](https://fishkeepingathome.co.uk/guides/testing-uk-tap-water-before-choosing-fish/): Understand the water supply before choosing livestock and equipment.
- [Which water parameters to test and when](https://fishkeepingathome.co.uk/guides/which-water-parameters-to-test-and-when/): Select measurements for setup, routine care and unexpected changes.
- [Aquarium GH and KH explained](https://fishkeepingathome.co.uk/guides/aquarium-gh-and-kh-explained/): Distinguish hardness from buffering and interpret test units.
- [Daily and weekly freshwater aquarium checks](https://fishkeepingathome.co.uk/guides/daily-and-weekly-freshwater-aquarium-checks/): A repeatable routine with links to the individual care tasks.

## Calculators and worked explanations

- [Water volume](https://fishkeepingathome.co.uk/guides/calculating-usable-aquarium-water-volume/#volume-tool-heading): Estimate usable water from internal dimensions and displacement.
- [Substrate quantity](https://fishkeepingathome.co.uk/guides/calculating-aquarium-substrate-quantities/#substrate-tool-heading): Plan a flat or sloping bed, then work out how many litre bags to buy.
- [Electricity costs](https://fishkeepingathome.co.uk/guides/aquarium-electricity-running-costs/#electricity-tool-heading): Use your own tariff and equipment running times to estimate costs.
- [Nitrate units](https://fishkeepingathome.co.uk/guides/aquarium-test-units-and-nitrogen-conversions/#units-title): Convert a nitrate-nitrogen result to nitrate, with the reporting basis explained.

## Troubleshooting

- [Ammonia with fish](https://fishkeepingathome.co.uk/guides/ammonia-in-an-aquarium-with-fish/)
- [Nitrite in an established tank](https://fishkeepingathome.co.uk/guides/nitrite-in-an-established-aquarium/)
- [White cloudy water](https://fishkeepingathome.co.uk/guides/white-cloudy-aquarium-water/)
- [Low filter flow](https://fishkeepingathome.co.uk/guides/why-an-aquarium-filter-has-low-flow/)
- [Water getting too warm](https://fishkeepingathome.co.uk/guides/aquarium-water-getting-too-warm/)
- [After a power cut](https://fishkeepingathome.co.uk/guides/what-to-check-after-an-aquarium-power-cut/)

## Equipment buying guides

- [Best Adjustable Aquarium Heaters](https://fishkeepingathome.co.uk/best/adjustable-aquarium-heaters/): Compare adjustable freshwater aquarium heaters by wattage, body length, controls and installation limits, with options from Fluval, EHEIM, Aquael and Interpet.
- [Best Aquarium Algae Scrapers](https://fishkeepingathome.co.uk/best/aquarium-algae-scrapers/): Compare aquarium algae scrapers, magnetic cleaners and pads for glass or acrylic, with checks for reach, grit, silicone seams and replacement heads.
- [Best Aquarium Gravel Cleaners](https://fishkeepingathome.co.uk/best/aquarium-gravel-cleaners/): Choose a freshwater aquarium gravel cleaner by working depth, substrate, flow control and bucket access, with compact and deeper-tank Amazon options.
- [Best Aquarium Lights for Low-Tech Plants](https://fishkeepingathome.co.uk/best/aquarium-lights-for-low-tech-plants/): Compare adjustable freshwater aquarium lights for low-tech plants by mounting span, dimming, scheduling and coverage, including NICREW and Fluval options.
- [Best Aquarium Tap Water Conditioners UK](https://fishkeepingathome.co.uk/best/aquarium-tap-water-conditioners/): Compare aquarium conditioners by standard new-water quantities, measuring needs and complete preparations per bottle, with source-linked calculations.
- [Best Aquarium Thermometers](https://fishkeepingathome.co.uk/best/aquarium-thermometers/): Compare independent aquarium thermometers by mounting, readability, accuracy limits and alerts, including glass, exterior digital and visual-alarm options.
- [Best Aquascaping Scissors and Tweezers](https://fishkeepingathome.co.uk/best/aquascaping-scissors-and-tweezers/): Compare planting tweezers, long S-shaped scissors and compact spring scissors by reach, working angle, hand access and plant-care task.
- [Best Automatic Feeders for Freshwater Aquariums](https://fishkeepingathome.co.uk/best/automatic-feeders-for-freshwater-aquariums/): Compare EHEIM autofeeder, TWINfeeder and JUWEL EasyFeed by food format, mounting, portion trials, battery requirements and daily checking.
- [Best Clip-On Lights for Small Planted Aquariums](https://fishkeepingathome.co.uk/best/clip-on-lights-for-small-planted-aquariums/): Compare compact clip-on freshwater plant lights by rim fit, arm position, coverage, dimming and timer limits, with Aquael and hygger options.
- [Best External Aquarium Filters](https://fishkeepingathome.co.uk/best/external-aquarium-filters/): Compare external aquarium canisters by installed-flow context, cabinet space, media access and exact replacement compatibility, including Fluval and JBL options.
- [Best Hang-On-Back Aquarium Filters for UK Tanks](https://fishkeepingathome.co.uk/best/hang-on-back-aquarium-filters-for-uk-tanks/): Compare three hang-on-back filters by UK electrical suitability, lid and rim fit, intake protection, media access and practical maintenance.
- [Best Internal Aquarium Filters](https://fishkeepingathome.co.uk/best/internal-aquarium-filters/): Compare freshwater internal filters by physical fit, media access, adjustable returns and replacement parts, with practical options for different aquarium layouts.
- [Best Quiet Aquarium Air Pumps](https://fishkeepingathome.co.uk/best/quiet-aquarium-air-pumps/): Compare aquarium air pumps by airflow control, installed depth, vibration, outlet needs and maintenance, with Tetra APS and Aquael OXYBOOST options.
- [Best Sponge Filters for Freshwater Aquariums](https://fishkeepingathome.co.uk/best/sponge-filters-for-freshwater-aquariums/): Compare air-driven sponge filters, twin-sponge layouts and air-supply accessories for freshwater aquariums, with practical fit and maintenance advice.
- [The best freshwater aquarium water test kits for your setup](https://fishkeepingathome.co.uk/best/freshwater-aquarium-water-test-kits/): Choose between API Freshwater Master and NT Labs Multi-Test by measurement coverage, hardness checks and the way you use the results.

## Publication and evidence

- [About Fishkeeping at Home](https://fishkeepingathome.co.uk/about/): Publication identity and freshwater scope.
- [Editorial policy](https://fishkeepingathome.co.uk/editorial-policy/): Selection reasoning, evidence standards, limits and corrections.
- [Source policy](https://fishkeepingathome.co.uk/source-policy/): How manufacturer documentation and freshwater care guidance support articles.

## Optional

- [Full sitemap](https://fishkeepingathome.co.uk/sitemap.xml): Complete canonical URL inventory, including articles reached from the topic hubs.
- [Contact and corrections](https://fishkeepingathome.co.uk/contact/)
- [Affiliate disclosure](https://fishkeepingathome.co.uk/affiliate-disclosure/)