Want to brighten up your home or looking to inject some life into your work space? A tropical aquarium can be both soothing and therapeutic.

We colour code our fish labels so it's easy to select suitable fish for your aquarium.  

Green Label – Peaceful Community Fish, Easy to Mix

Yellow Label – Generally Peaceful but may grow large

Red Label – Large, Aggressive Fish, difficult  to mix

Blue Labels – African Cichlids, not communal

White labels – Coldwater Fish



Beautiful Aquariums in Eltham

tropical fish in Greenwich

Our staff are always on hand to help you make the right choice, we are also able to advise on the best food to feed your fish, fish tank maintenance and any general information you may need before starting up your aquarium.

We sell a large range of community fish such as:

We have a selection of Cichlids including:

We sometimes have oddballs such as:

Terrapins, Musk Turtles and Axolotls are also available!


We have different fish arriving every week and if there is anything special you are after we can try to order it for you. to find out more call Castle Aquatics, Eltham on 020 8856 0505

Handy Tip


Always rinse your filter sponges in a bucket of aquarium water and not under the tap.

Cardinal Tetra