2Hr Aquarist APT e Aquarium Heater Eheim BioPower 160 is a

Eheim BioPower 160 is a modular internal filter for aquariums up to 160 liters

For lower-tech tanks without CO₂ or with less demanding plants

and CO2 Solenoid Controller

Assign colors consistently across your whole setup — for example

2Hr Aquarist APT e Aquarium Heater Eheim BioPower 160 is a2Hr Aquarist APT e EI Method Liquid Fertilizer APT e (APT EI) is a highly concentrated liquid fertilizer for planted aquariums, built around the Estimative Index (EI) methodology pioneered by Tom Barr. It delivers a ready to use EI solution no mixing dry salts, no calculations, no DIY preparation. Just measure and dose. What Makes APT e Different Compared to standard homemade EI mixes, APT e is formulated with roughly half the nitrogen relative to