🧴Care & grooming for the Goldfish
Goldfish : Goldfish produce a lot of waste: plan a filter turning over 4 to 5 times the tank volume per hour and a 20 to 30 percent water change every week. Monitor nitrites and nitrates with regular test kits.
Brushes, hygiene products, parasite control, habitat upkeep: your fish’s routine care happens at home, with the right equipment. Our guides separate the essential from the gimmick — and say when the vet, not the shop aisle, should have the answer.
A test kit (NO2, NO3, GH, KH, pH) costs €15–30 and prevents most disasters — the nitrogen cycle is non-negotiable.
The guides that apply to you
- RO units and reverse osmosis water in aquariums: who actually needs it?
Is reverse osmosis water essential for an aquarium? Find out who really needs an RO unit, how to remineralize and what budget to plan (unit or jerrycan).
- Water conditioner and starter bacteria: essential or just marketing?
Water conditioner and starter bacteria: what do they actually do? Chlorine, heavy metals, faster cycling: what to buy and what to skip.
- Aquarium UV sterilizer: the radical fix for green water
A UV sterilizer clears green aquarium water within days. How it works, wattage, prices and limitations: what to know before you buy.
- Hospital and quarantine tank: the kit that saves your fish (and your tank)
A hospital quarantine tank keeps diseases and parasites out of your main aquarium. The complete low-cost kit: tank, filter and heater.
- Test strips or liquid test kits: which should you choose for your aquarium?
Test strips or liquid test kits for your aquarium? Accuracy, cost per test, parameters covered: the honest comparison and the mixed strategy that works.
- Hang-on-back or internal filter: which to choose for your aquarium?
Hang-on-back or internal filter for your aquarium? The hang-on-back frees up space and is serviced without hands in the water, the internal costs less. Comparison.