Straightforward information on tank cycling, water chemistry, species compatibility, and planted setups — for hobbyists at every stage.
Latest Articles
Three areas every freshwater keeper should understand before adding fish.
The nitrogen cycle is the single most important process to understand before adding fish. This guide covers fishless cycling step by step, from day one ammonia dosing to the first fish-safe reading.
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Not all hardy fish are suitable for a new tank. This overview examines water parameter tolerances, adult size, and temperament for ten species commonly recommended to first-time fishkeepers.
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A planted tank does not require CO2 injection or expensive lighting. This article explains substrate choices, slow-growing plant selection, and fertilisation routines for a low-maintenance planted display.
Read article →Ammonia, nitrite, nitrate, pH, hardness — each of these directly determines whether the fish in a given tank survive long-term. The articles on this site are built around testing data, not general reassurances.
Key Topics
Establishing beneficial bacteria colonies before fish are introduced. Covers fishless cycling, ammonia dosing schedules, and test result interpretation.
Practical guidance on test kit types, testing frequency, and how to read API liquid test results for ammonia, nitrite, nitrate, pH, KH, and GH.
Matching fish to tank size, water hardness, and tankmate temperament. Focused on species available in Polish fish stores.
Substrate options, slow-growing plant species that survive without CO2, and basic fertilisation using liquid or root tabs.
Filter sizing by tank volume, heater selection, lighting spectrums, and quarterly maintenance schedules to keep hardware running properly.
Weekly water change volumes, glass cleaning frequency, filter media rinsing intervals, and seasonal adjustments for temperature fluctuations.
Questions about a specific setup or water parameter issue? Use the form below and we will respond within two business days.