Second Hand Marine Fish Tanks
Some amazing marine fish tanks available in second hand condition from sellers throughout the UK. There are many different styles and brands to pick from, perfect for housing some amazing fish. These marine fish tanks look great anywhere in the home, lit up for all to see and enjoy!
We may be compensated for any purchases made
 | Marine Lominie PIXE30 LED Light with Remote Control and Power Supply this is a used but fully functional and working Marine Aquarium pixie 30 LED light . comes complete minus one bolt which has been replaced... | £31.90 or make offer £2.94 delivery |
 | TMC Reef Habitat 50 Marine Aquarium And Sump Nano reef ideal size contemporary No silly offers Original price £650 Purchased in Feb 2026. An Awesome nano reef marine aquarium with it's own sump. Designer style cabnite greyish concrete... | £363.70 or make offer Collection only (Maidstone) |
 | Red Sea MAX 250 Complete Marine Aquarium Setup The aquarium is currently still set up and running to keep the mature live rock maintained until the setup is sold. It has already been... | £312.70 Collection only (Peterborough) |
 | Red Sea Reefer G2+ 350 (Tank & Cabinet Only) Red Sea Reefer G2+ 350 Tank and System SizesDisplay tank length: 120 cm (47") Display tank width: 50 cm (20") Display tank height: 53 cm... | £338.20 or make offer Collection only (Grimsby) |
 | Private Listing For Marc Pearce marine tank with lights | £750.00 Free delivery |
 | Aquamedic Evo 4 Marine Aquarium Dosing Unit. In Good Working Order. See Photos Aquamedic doser in good working order. Couple of connection grommets missing but these can be brought. | £52.70 or make offer £5.21 delivery |
 | aquarium tank wavemakers Octopus pulse 17000 LPH OP-4 two wavemakers connect in one controller.. in very good condition full working | £229.50 Free delivery |
 | 5 Litres Black Top Cover Aquarium The Marina Mini Aquarium is a compact 10L tank with dimensions of 25.4 x 25.4 x 31.5 cm, making it ideal for smaller spaces or... | £14.99 £4.16 delivery |
 | Red Sea REEFER 450 Marine Aquarium (Tank, Sump & Cabinet) – Project / Spares Red Sea REEFER 450 rimless glass aquarium system. This is a premium, high-end marine setup featuring ultra-clear, heavy-duty glass. It has dried salt/calcium residue and... | £208.70 or make offer Collection only (Batley) |
 | Marine Reef Aquarium Fishtank 100l Fish Tank Filter sock holder. -5 filter socks. | £180.00 or make offer Collection only (London) |