Shark Pro 500 Internal Filter Boyd Jurassic Products' Black Aqua Wood

Jurassic Products' Black Aqua Wood is heavy wood that easily sinks

It helps to soften water naturally

They also have an iridescent blue line that runs along their backs

Omega-3 fatty acids from herring help break down and absorb more nutrients from the krill and kelp

The balls are made of resin

Shark Pro 500 Internal Filter Boyd Jurassic Products' Black Aqua WoodSicce's Shark Pro 500 Internal Filter is rated for tanks up to 37 gallons. It is a fantastic internal filter for smaller tanks that includes a magnetic mount, flow regulation and 3 types of flow options. These are uni directional flow, an integrated spray bar or an airline that allows for oxygenation from the uni directional flow outlet. You can add multiple modules to the filter through their 'magnet connecting system' that allows for more filtration