In 6 months of running the tank I’ve only had one fish make it all the way to the filter pump section. If you don’t clean this you’ll notice the water in the pump section get lower and lower as the pump struggles to work. The next step was to start adding some C02 to really help the plants grow – you can read about adding pressurised C02 here. Adding the fish and shrimp

Everything that could disturb the layout, such as hoses, filter, heater and CO 2 system, can be concealed behind the fixed rear panel. The Flex Nano Aquarium series provides contemporary styling with its distinctive curved front. The tank is equipped with a powerful 3-stage filtration and an infrared remote control that allows you to select between several colours and special effects. The Flex aquarium is the perfect option for any fish keeper with its unique design and fantastic features.The Fluval Flex 57 L aquarium provides contemporary styling with its unique curved front. The tank includes a built-in powerful 3-stage filtration system and an infrared remote control that allows you full control of the lighting in terms of both colours and special effects. These fully equipped kits have proven to be exceedingly popular with hobbyists with all the necessary hardware needed to set up a thriving freshwater aquarium. To start with you need to take the filer media out of the plastic bags and slot them in the holes they came from – still in the mesh bags, rinse them under some clean cold water, then return this to the middle column. Flex comes compact with several great features including its easy feed large cut out opening for simple feeding. Its multi-directional dual output nozzles mean the tank water flow can be adjusted depending on your tank setup. The rear filtration compartment also provides ample space for a heater (not included). The tank will need general maintenance to keep it clean such as cleaning the filter sponges. These can be easily removed and cleaned under water.

After running the Flex like this for 3 days I then turned the filter and heater on and ran it empty for week to make sure the temperature was right and held. This also gave the tank some time to settle before adding any fish or shrimp. If you’re setting the tank up as a tropical aquarium then you’ll need a heater to add to the tank – there’s loads of these available and our recommended nano heater is the Fluval 50 w heater.The Fluval Flex comes with a Flex pad remote control which conveniently controls a wide range of lighting colours as well as fun special effects including faded cloud cover and lightning bolts. The fully adjustable white and RGB LEDs provide endless colour blends and up to 7500K to support plant growth and enhance fish colouration. Stylish, curved front.... a distinct contemporary aesthetic.... stunning illumination - just a few advantages of the breathtaking Fluval Flex range! This line of aquariums, feature in-built multi-stage filtration and an innovative FLEXPad remote control for limitless personalization features.