Written by
Connor Boyle
Marine & Coldwater Specialist · 9+ years in the hobby
Connor kept a reef aquarium for four years before switching to coldwater native fish and goldfish — he now runs a 400-litre river-community tank modelled on the Thames chalk streams. He writes Tropical Fish Co's coldwater, native-UK, and future marine guides.
Coldwater freshwater (native UK)Goldfish (single-tail, fancy)Stream biotope aquariumsTemperate invertebratesMarine fish-only (legacy)
