Home » Advice (page 2)


Tips for selecting fish

selecting aquarium fish

Introduction How do you know that the fish you are about to buy are good healthy fish. Have you done a little basic research about the fish other than asking the vendor for some information and are you certain that you can meet all its needs even when it has become an adult. Too many times we see on various ...

Read More »

pH and the Fresh Water Aquarium

aquarium ph

Introduction The pH scale goes from 0 to 14. When the pH is 7 the water is neutral which means it is neither acidic nor alkaline. If the pH drops below 7 then the water is acidic and the lower the pH the more acidic the water. If the pH is above 7 then the water is alkaline and the ...

Read More »

Ammonia, Nitrite and Nitrate in Detail


Ammonia, nitrite and nitrate Ammonia: (NH3) is found in two forms, the very toxic ammonia – NH3 and the far less toxic ammonium NH4. They will both be present at the same time but the ratio depends on the pH of the aquarium water. Low pH means that there will be less ammonia and more ammonium and a high pH ...

Read More »

Water hardness and fish keeping

water hardness

Water hardness Water hardness is a measure of the quantity of divalent ions, mainly calcium and magnesium and, to a lesser degree, iron and selenium. There are two types of water hardness, temporary hardness and permanent  hardness. Temporary hardness is often called carbonate hardness or alkalinity and it can easily be removed by boiling the water, it is this type ...

Read More »

Pond and Lake Algae: Friend or Foe?

algae ponds lakes

This article has been contributed by Lake Restoration We often think of algae as annoying green scum covering our fish tanks, ponds, and water features. Sometimes we think of those “algal blooms” that happen every summer. We walk by lakes, reservoirs and ponds with noses turned up at the awful smell as valuable oxygen is consumed and other water life ...

Read More »

Using Salt in Freshwater Aquariums

aquarium salt

Introduction There are some quite firmly held beliefs when it comes to using salt in freshwater aquariums and there is an awful lot of misinformation about all the dos and don’ts regarding its use. Salt, sodium chloride, NaCl does have many legitimate uses in fish keeping. It has proven health benefits when used to treat certain ailments, it can be ...

Read More »

Using Rain Water

rain water aquarium

Introduction The most obvious first question to ask is,  is rain water safe? We are often told about the pollutants rain picks up as it falls and informed about the dire consequences if it is used in our aquariums. Is this really the case, after all native fish live in what is essentially rain water and what is worse this ...

Read More »

Do fish grow to suit their tank size

do fish grow to their tank size

Introduction There are many myths and half truths associated with fish keeping, some like “a fish will only grow to suit the tank it is kept in” are very deeply entrenched and often accepted as fact. There are many factors which affect a fish’s growth but tank size isn’t one of them. The main factors which have a direct affect ...

Read More »

Cycling an aquarium

aquarium nitrogen cycle

Introduction This is one area of the hobby which seems to cause the most problems to new hobbyists. This is partly due to poor information at the point of sale and lack of proper research. It is vitally important that every new aquarium is properly cycled (matured) in order to make it safe for housing fishes. All fish excrete ammonia from ...

Read More »

Choosing the right biological media, the surface area wars

Eheim Substrat pro

I bet you don’t know what the BET theory is, or even how many cubic feet of surface area each sponge in your filter has. I really don’t blame you as, in any case, it’s as boring as it is unimportant. It seems there’s an infinite number of biological media products available and the purveyors of such products never cease ...

Read More »