Over the past few months I have come across information regarding the creation of anoxic environments in aquariums, one of them being a deep sand bed (around 10+ cm?). I have also heard that some people worry that it could create hydrogen sulfide, which could creep out if the sand bed is disturbed too much and kill everything (though this could be neutralised with enough oxygen in the water, maybe with bubble stones?).
Could one for example, create a base layer of the Marine Pure blocks (maybe too brittle) or Xport-Bio dimpled bricks and then even put a small layer of sand over these (if you want the sand of course). I know this is probably very expensive, but could that actually work?
Please let's assume everything is happening inside the tank so no sumps, hobs, canister filters etc.
Am I just crazy and misunderstanding something?
Could one for example, create a base layer of the Marine Pure blocks (maybe too brittle) or Xport-Bio dimpled bricks and then even put a small layer of sand over these (if you want the sand of course). I know this is probably very expensive, but could that actually work?
Please let's assume everything is happening inside the tank so no sumps, hobs, canister filters etc.
Am I just crazy and misunderstanding something?