Sera CO2 Start oista they are perfect for both

they are perfect for both beginner and expert fish keepers

effective oxygen and water quality filtration

Compatibility Community Lighting No special requirements

but also a great conversation starter for fish enthusiasts

Sera CO2 Start oista they are perfect for bothFor a start into CO2 fertilization 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