Hobby Navajo Rock Aquarium Decor - Rock 1

Hobby Navajo Rock Aquarium Decor is a textured decorative rock with a genuinely porous surface, which is the part worth paying for - porous surfaces are where filter bacteria live.

Key Features

• Sizes: Rock 1 at 23x11x18cm, Rock 2 at 24x13x21cm.
• Porous Surface: gives nitrifying bacteria somewhere to colonise, so it adds a little biological capacity as well as looking right.
• Stackable: the flat faces let you build caves and shorelines rather than just placing a single feature.
• Inert And Fish-Safe, with no effect on pH or hardness.

Good To Know

• Pick the size above.
• Rinse it under the tap before it goes in, and have a look for sharp edges or casting flash on any moulded piece.
• Keep decor clear of the filter intake and the heater. Blocking either is how a tidy layout quietly becomes a problem.
• Build so it cannot collapse. Anything stacked in a tank should still be stable if a large fish swims into it, or if you nudge it with a siphon.
• Scrub algae off under the tap with a brush and plain water. No detergent, ever, on anything going back in a tank.