Driftwood can serve a number of functions in an aquarium. While most people think of it as a decoration, it also can provide a food source and encourage ideal water parameters for certain fish. Its important to understand these ancillary purposes of driftwood when deciding if it's right for your tank.
Driftwood Changing Water Color - Fish Tank
If you are constantly battling alkaline tap water, the addition of driftwood to your aquarium can help buffer and sustain a lower tank pH. This is especially important for fish populations that require slightly acidic or soft water to thrive.
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In my experience fish from South America, Central America, but also from North America, and from Asia like having driftwood in the tank. Bear in mind that some cichlids from North and Central America don’t prefer low pH values.
Freshwater Aquarium Set-up: Adding Driftwood to Your Aquarium
"I soaked my driftwood for months and it still won't sink to the bottom of the tank." Fortunately there are a few ways to make it sink. One way is to use some fishing line and tie a plant to it for added weight (and beauty). Or you could silicone (make sure you use an aquarium safe silicone) it to a piece of slate (if you like the look) or to some flat pieces of plastic (then bury the plastic in your substrate). Some people have used titanium or stainless steel lag bolts imbedded in the wood to weight it down. I would not do this, as I don't want anything metal introduced into my tanks. I also heard of one person that drilled some holes in the bottom of a piece then filled it with molten lead to make it sink. You could then silicone over the lead to seal it from the water.Why can’t you just stick any old piece of driftwood into your fish tank or aquarium? Because even though it might seem harmless enough, it could actually end up seriously harming your fish, especially if you’ve taken it from the beach. Driftwood could be sharp or contaminated, and adding this to your tank could be potentially dangerous. But this doesn’t mean that driftwood for a fish tank is a bad idea. In fact, it can be a great addition that your fish will love, as long as you choose a piece carefully. Manzanita is a popular choice, and we’ve taken this into consideration in our list. With this in mind, we’ve selected some different types of driftwood that will be completely safe for your fish, and included them below: