BeanAnimal's Reef at

Home of the "Bean Animal Silent and Fail-Safe Overflow System" and many more interesting things reef aquarium related. Together, we will explore the technical side of the aquarium hobby and the science of reef keeping with projects, articles, tools and reviews. Read the full mission statement here.


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Hanna Checker HI-736 Phosphorus Checker HC

Hanna Checker HI-736 Opinion

I have recently purchased a few of the “Hanna Checker” products designed and sold by Hanna Instruments. While there are many “reviews” of the Hanna Checkers online, most of them are...

555 Based Feeding Timer

The “Calfo” style (a.k.a coast-to-coast) overflow setup that I utilize in my system is super efficient at surface skimming. The surface skimming is so efficient that I must shut down the return pump...

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