Lights are important when keeping fish. If you have a goldfish aquarium lighting is important to ensure goldfish keep there Colour. Most goldfish when small may have black or brown spots which will soon disappear wen they grow if lighting is good in your tank. It's also important if your keeping plants real plants need light to establish you can get uv lighting for plant growth
Freshwater setup: MUST HAVE: Tank, filter, filter pads/media, heater, light, fish, water, electricity, fish food, place to put tank NICE TO HAVE: Substrate, decorations, tank lid
Algae occurs naturally in any situation that has the three essentials for algal growth. They are Water, Light, and plant nutrients. If your tank has water and fish in it there will be food available so the only thing that may be needed is sufficient light.
A heater can raise the temperature of a fish tank if needed
The energy for the plants in a fish tank is supplied by Light.
Water,the fish tank,and alot of room so the fish can have room to swim around in.
It is instinct for fish to hide from danger. It is normal for some fish to hide from the light.
Turn the light off or get a smarter fish.
that depends what you want to do with the tank if you want a planted tank then dont go with a LED light inless the plants are very hardy and dont require a lot of light. if its just for fish go with the LED light. i have a LED light on my fish tank and my fish are doing great. i dont have any plants but i might get some hardy, low light ones. LED also saves energy
Typically heaters are needed for tropical fish tanks. However, if you could guarantee the room temperature where the tank is located will be maintained at the needed temperature for your fish, then you don't need a heater. Most tropical tanks need to be maintained at temperatures of 72 to 80 degrees Fahrenheit, depending on the types of fish in the tank.
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The filter removes the fish waste and some of the other impurities.
A water pump is needed to pump in fresh water.