DSB question?

[across]

When i first started my tank which was 2 and a bit years ago i set it up with a DSB now i still have this deep sand bed but i'm in the process of re doing the tank, well removing some rock and most of occupants so would it be a good idea to remove most of the DSB and just going for a very shallow bed of sand?

I dont have a sump or anything like that so wondered could i stick most of the sand in and external filter or would that not benefit it in anyway?

PLease let me know whats best to keep or to get rid?

Alex

[seanysean]

Keeping or removing your DSB is simply up to you, people have had problems with them crashing before but others have not, I personally think if you have had it running ok for 2 years then you should keep it, considering that you do not have a sump

You could put the sand in the external filter, but it would not be for reducing your nitrates as is the purpose of a DSB it would simply help with the mechanical filtration of your tank.

Sean

[johnlfc]

I suspect you may well release toxins into your system if you disturb the lower layers of a DSB. Sorry I cant be specific but I seem to remember reading something about this at some point.

I would think your options would be :

1. Leave as is.
2. Remove totally (if safe to do so ie no livestock) and replace with new sand or wash and replace existing sand.

I may of course be talking total pants and if I am I would think someone will be along shortly to correct me. :confused:

HTH to get you a decision.

Cheers
John

[Flobajob]

The trouble with disturbing the sandbed is that the lower layers may contain a build up of hydrogen sulphide which is toxic to fish. Plus you may release phosphates and other 'trates that have been trapped in your sandbed. This would seriously affect your water chemistry, potentially harming fish, causing algae blooms etc. Basically, if you do remove the sandbed you will have to be very careful not to stir it up too much.

[johnlfc]

Thats just what I meant!! :D :D

[across]

So basically then leave it as it is as its the safest option :) Thanks Guys, as obviously i dont want to let phosphate levels rise etc