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4 bio rings in 5 gallons (19 L) of water is more than enough to start the bio cycle to cultivate beneficial bacteria in 4 to 6 weeks.


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Aquariums should replicate as much as possible the natural environment. Plastic is not natural. Cement is not natural. You are better of using stones and hard wood. You can build anything you want with these. What is even better, is that you can even boil them as much as you want, without significant negative side effects. I mean, boil the stones and the ...


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It is a lot better to buy fish from a local petshop, close to where you live. You can see the fish you buy and the shorter time it takes to bring the fish home from a shop will most likely stress the fish less, so their health will be better. I understand why you try to avoid the large petshop chains, but it still might be better to get your fish there than ...


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The way to do this is to setup your new tank, you do not need to move the old gravel, but you need to move some of the decor or filter media to your new tank; this is to seed your new tank with bacteria. Do not move your fish to the new tank until it is properly cycled. Using some of the water from your old tank is not very helpful, the water contains very ...


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The short answer to this is rock that crumbles or breaks apart easily might be a sign that the rock dissolves easily, so it might leach unwanted minerals into the water. Rocks in cold climates might freeze apart, so they might be safer - but you really need to know what type of rock it is. In general rocks that break apart easily should be avoided. The rocks ...


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Looks like an iron rich (red) shale (mudstone) with poor integrity/strength. What is bad about smaller rocks? I have used tons of flagstone (sandstone type) around my pond and many other various rocks such a "holey limestone" in aquariums. All I ever needed was to squirt them with a garden hose. Except the rock around/in the pond, there is so much ...


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I made my first dirted tank a couple months ago. I used topsoil instead of potting soil because the Perlite in potting soil is allegedly a nuisance, always wanting to float at the slightest disturbance. I'd imagine that if you were disturbing the cap enough to release dirt into the water at any sort of frequency, cloudy water would be a bigger problem than ...


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