1 + 4 = ?  
Input the result from the expression
Maximum attempts you can try: 10

Re: Cleaning small Pond

Subject: Re: Cleaning small Pond
by Otter on 13/1/2012 3:06:37

and am I ok stripping it back comeplety and starting it again?

This depends on the condition of the pond and whether or not you have any fish. If you start over, you'll loose beneficial bacteria, but it may be worth it if the muck is deep enough. If there is a gravel bottom, consider taking the gravel out, as the biological load of the debris it traps far outweighs the surface area it provides for nitrifying bacteria.

If you have both fish and sludge, either take the fish out or clear only a small section of sludge each day. The reason for this is that the sludge will release poisonous gases when disturbed, and too much at once will kill the fish.