"Tannin Aquatics is more than just a purveyor of aquascaping materials. We’re a mood, an atmosphere, a space to be inspired. Our products support an earthy, organic canvas upon which you can express yourself through the art of aquascaping. We provide information, the muse, and natural materials for you to create blackwater and brackish microcosms which blur the lines between nature and aquarium." -Scott Fellman, Owner

The Tint

Holding the line... Simple thoughts on evaporation and strategies to counter it.

October 20, 2020

One of the things I've been obsessive about with my botanical-style aquariums is water exchanges. To me, the one single most important thing we can do as aquarists is to exchange water. And of course, the whole idea of water exchanges is to create stability in your aquarium's environment. This is pretty much "Aquarium Keeping 101", and we all know this, right? And then there is what happens between water exchanges: Evaporation...and how we manage it... Evaporation is a pretty big deal. And it has immediate impact on the environmental stability of our aquariums. Dissolved solids, minerals, organics, and salt ( when present) do not evaporate. When evaporation occurs in your aquarium, the concentration of substances in the water actually increases...

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Eschewing the prep process, and the sheer audacity of being stubborn

October 19, 2020

As the botanical-style/blackwater aquarium world evolves, we've seen a lot of changes in practices, procedures, and techniques. Here at Tannin, we've spent the better part of the past 5 years attempting to dispel old, outmoded ideas, second-hand "facts", and outright myths in our little niche.  And the battle continues. It's an old hobby story which never really ends. For whatever reason, there are factions within the hobby who imply refuse to accept any idea, practice, or approach which contradicts "long-settled" aquarium hobby thinking. It's almost sort of strange. And shockingly predictable. We've all seen this many times. You develop an idea or approach, experiment with it, perfect it, have fellow hobbyists replicate it, and there are STILL huge areas of...

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