Sera CO2 Start

Sera CO2 Start

Sera CO2 Start

$48.75

Carbon dioxide (CO2) is the basic plant nutrient and allows adjusting a slightly acidic pH value, as it is preferred by many plants and fish.

The sera CO2-Start fertilizer system is easy to install and operate. It is ideal for the very widespread and popular smaller aquariums up to approx. 120 liters (31.8 US gal.). sera CO2-Start consists of an optically unobtrusive sera CO2 diffusion reactor and the corresponding sera CO2-Tabs plus.

This convenient and uncomplicated CO2 fertilization system can be integrated into the aquarium even by beginners without any previous knowledge entirely without any problems.

Usage

  1. Position the sera CO2 diffusion reactor in an area of constant water movement, for example close to the filter outlet.
  2. Attach the sera CO2 diffusion reactor (single vent at the top end) to the aquarium glass using the suction cups.  The upper edge of the reactor should be placed near the water surface (ideally 5 mm / 0.2 in. below the water surface).
  3. Then push the rubber stopper, while twisting it lightly, about 7 – 8 mm (0.3 in.) into the vent. There will be air inside the sera CO2 diffusion reactor after the weekly partial water changes. This air can escape when removing the rubber stopper briefly, and the reactor will be ready to use again.
  4. Use the sera CO2 diffusion reactor only if sufficient filtration and water agitation are provided.

The CO2 requirement depends on many factors such as lighting duration and intensity, type of planting, water current and many more.

A basic rule is:

Water Volume

 Dosage
45 – 60 liters (12 – 16 US gal.) 

 

1 sera CO2-Tabs plus every 3rd – 4th day
60 – 90 liters (16 – 24 US gal.)

 

1 sera CO2-Tabs plus every 2nd – 3rd day
90 – 120 liters (24 – 31.7 US gal.)

 

1 sera CO2-Tabs plus every 2nd day

 

 

 

 

 

 

 

 

 

 

  • Courier Service Selections are provided at the end of check-out.

  • For WA Customers, please select Toll Priority for Live Fish orders.

  • In the unfortunate event of a DOA, please message us on seven7fishes@gmail.com with a video in an unopened bag and corpse within water for us to process the claim.

  • Postage costs are not refundable. 

  • Ensure you arrange to receive the package. Deaths resultant from leaving the package unattended for an extended period of time will not be refunded. 

  • Please be aware that marble variety bettas (i.e. Koi, Grizzle, Fancy, etc.) can change pattern and colour during transit as well as over time. We cannot guarantee the pattern will remain the same throughout its lifetime. 

  • Fin nipping during transit is an occurrence that can happen during postage. Please understand this is a risk with long-finned varieties.

  • If there are any issues, please contact us on the day of arrival with images.

  • For more information on shipping policies, please click here.

Sera CO2 Start

$48.75