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Anonymous
Is there anything I should know before replacing gravel with sand in my 20 gallon freshwater? I've never used sand before and I'd like to know if anyone has had issues with it.
>> Anonymous
Is that a tunnel connecting two tanks? Paint each outer ring orange and blue :)
>> Anonymous
Do make sure to rinse the sand very, very throughly. Especially the finer gradients of sand.
Is that your picture?
What kind of fish are in there?
>> Anonymous
not sold on the two tank connected thing but the setup(wood+plants) is win

also is dat some anubia (freaking plant is unkillable) ?
>> tigerfeather !CrwtTbFNxQ
You can use your gravel vacuum, just hover over the top of the sand to get the stuff that accumulates on top. You will probably inadvertently take some of the sand with it....just replace the lost sand when it gets low. Also, make sure that you stir your sand once a week to keep funky bacteria from forming under the top layer which will leech out to kill your fish.
>> Anonymous
your plants might not root well in sand.
>> Anonymous
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>> Anonymous
Deep sand bed might cause roting and create anaerobic pockets, wich will poison your fish. Either regularly disturb your sand (poke with something), dont make it too deep (3 inches max) or get malaysian trumpet snails who would mix the sand for you.
Careful during the water change - sand is easily disturbed.
Many fish love to dig in the sand - this is good for them, but bad for your plants that get easily uprooted and your filter wich can get cloged with sand and be ruined this way.
Sand created from crushed corals/oyster shells will change your water chemistry, and also due to rough ages might harm your fish.
Bright wight sand often gets dirty very quickly.