Help Guides

BiOrbs are very popular aquariums and come in a number of sizes including 15, 30, 60 and even 105 litre volumes, but how many fish can you keep in each one?

Tropical fish range in size, diet, temperament, water conditions, but also how long they live for. So how long do they live?

Clean tanks equal happy owners, so by keeping your tank clean, you are more likely to enjoy it and stay in the hobby. Clean tanks are better for fish too.

Pond water depth is critical to what you want to put in it. Wildlife, goldfish, koi and pond plants all have different depth requirements which you should match.

Knowing the volume of your pond is critical to stocking with fish, adding filtration, and treating the water, so how do we work it out?

Pond cleaning is an unenviable task, but it needs doing. If you don’t clean a pond it will fill up with leaves and debris, and plants and algae may overgrow.

We often divide freshwater fish into two types - tropical and coldwater, but what defines a tropical fish, and what temperature is tropical?

Planted tanks can be some of the most beautiful aquariums, and live aquatic plants can benefit fish too. Is CO2 essential for a planted tank?

GH is an abbreviation for General Hardness, and it's a reference to how hard or soft your water is, so how do we lower GH?