Recent content by mjbarnard

Thanks. I'm not sure I can be certain about that. Nothing added or nearby to my knowledge. Since I have been working hard on my new tank for the last two weeks, I have pretty much not disturbed the old very much - only for feeding, cleaning and water changes. I have just found another dead...

This is a very strange problem. I woke up this morning to find 5 dead fish and the rest gasping at the top for air. I have solved it with some immediate water changes, but do not understand it. 3 year old established tank - 125 litres. Always been overfiltered - Eheim Pro 3 2073, suitable for...

I am having a custom tank(freshwater, planted 140 x50x60) built by aquariums ltd. I have specified 4 holes drilled in bottom of tank so that 2 external filters can have inlet and outlet plumbed directly through the bottom of the tank, with no external tubing ( have reasons for this due to...

I am getting my new tank drilled so that the filter(s) can have their inflow and outflow directly through the base of the tank from the cabinet below. The aquarium company wants to know what size holes I want. I will probably use Eheim filter, model not yet decided. My questions are ; 1)...

Apologies for such a basic question - but can't find the answer through searches or looking at manufacturer's instructions. Do external filters rely on gravity to drain water? Is it possible to locate a filter level with the tank? I have seen many external filters specify the maximum head...

Thank you for your reply and your courteous welcome. I am frequently in America and everyone seems so hospitable and polite. You are exactly correct about the time frame. Good point about the tap water - haven't checked it for some time, so just rechecked. NH3 0, NO2 0, NO3 10-20. I have both...

Don't really understand my results/sequence of events. Have established nano tank 35L. Upgrading to 120L tank currently right next to it. Added large second filter to nano tank, primed with bactinettes and ran it for 3 weeks. Set up new tank, added a bit of gravel, 2 plants, a decoration and...