How much CO2 does my aquarium need?
As a rule of thumb, for every 5 gallons of water, you should have 1 bubble per 3 seconds. So for example, for a 5 gallon tank, 1 bubble every 3 seconds. For a 20 gallon tank, 4 bubbles every 3 seconds.
How much CO2 does a planted tank need?
Dennerle recommends a CO2 concentration in the aquarium of between 15 and 30 mg/litre – a value between 20 and 25 mg/litre is ideal. The dosage required for this CO2 concentration depends on various factors such as planting, water flow, surface/volume ratio etc.
How big of a CO2 diffuser do I need?
The gross volume of the aquarium is considered when choosing the right diffuser. The larger your tank is, the larger should the diffuser and the diameter of its ceramic membrane be. The CO2 system should work with a correspondingly higher pressure, too. Smaller-sized diffusers are more than enough for nano aquaria.
How long will a 5lb CO2 tank last for aquarium?
You’ll need about 5lbs a month for your 75gallon tank. A good reactor and turning off the gas a night might make a 5lbs tank last 5-6 weeks.
Is CO2 needed for a planted aquarium?
CO2 is arguably the most important element in the planted aquarium. It is required for respiration and growth by all aquatic plants, used in a process called photosynthesis. Plants require a constant supply of CO2 during the light hours, otherwise they can suffer.
Does CO2 go bad in a tank?
They don’t exactly expire, just the certification runs out. When this happens, the tank needs to be hydrodynamically tested again.
Does CO2 promote algae growth?
Even a small increase in CO2 will improve plant growth, but the level must remain stable while the plants are under illumination, otherwise algae will proliferate. With good light and CO2, plenty of other nutrients are necessary to feed the plants effectively, promote healthy growth and prevent algae.