Best internal aquarium filter: NO.17 Submersible Aquarium Internal Filter vs COODIA Internal Green Water Killer Filter 

An internal aquarium filter is the aquarium equipment that must be completely immersed inside your tank. Generally speaking, the best internal aquarium filter is compact in size, operates without making much noise, and also ensures reliable filtration for the small and medium tank size.

This post will filter out only two functional and superior quality internal filters: NO.17 Submersible Aquarium Internal Filter vs COODIA Internal Green Water Killer Filter.

As the quick disclose, we higher appreciate COODIA filter than NO.17 for only one reason that is NO.17 filter is slightly heavy and have to be fully immersed, which makes it a litter bulky, while COODIA filter is pretty smaller.

#1 Flow rate

Depend on the size of your aquarium; you will need to choose the best fish tank filters that have a suitable flow rate. A larger tank will require more powerful rates of flow than a smaller tank. Basically, the best filter for your tank should handle all the water in your tank for a minimum of three times per hour.

COODIA green water filter could already successfully filter a tank that contains 150 gallons. While No.17 filter is designed to filtering 132 gallons per hour, it also offers a key that allows you to adjust the water flow rate. This is serviceable to fish tanks from 10 by up to 50 gallons of water.

#2 Features

NO.17 Submersible Aquarium Internal Filter includes the multiple filter media that serve for different filtration purposes. It equipped the high-quality water pump that is built to offer more reliability and ensure noise-free operation.

This pump produces microbubbles that help to remove all the detritus floating in the water. This product also safe you’re your fish since it comes with the sponge filter that is cover the input to prevent your fish go into and stick on the motor. Moreover, It includes 2 nozzles; you can choose the nozzle to clean and fresh your aquarium.

COODIA filter equipped with the 5-watt water pump and 5-watt U-V light included. The light provides 254nm wavelength UVC that works for controls harmful microorganisms and prevents the growth of free-floating algae.