Hi all. I'm a newbie to this planted tank lark (I got the bug after a visit to TGM about two months ago, so that's Graeme's fault! ). I have gained a vast amount of knowledge lurking round this site from all you knowledgeable people, but I have finally got a question of my own I'm wondering if anyone can help me with. This setup has been running for about 5 weeks now and tonight I have noticed these little creatures crawling all over the glass. They seem to take on the appearance of 'mini maggots' if that makes sense. They are about 1mm long and no more than 0.2 mm diameter. I am wondering if they will be harmless or harmful to any fish I introduce, (no fish in the tank yet) or do I have to go on an extermination mission? Or is it a free lunch for the fish? They have obviously come in as eggs of some sort on my plants or redmoor root wood. Hope you people can help as I have kept fish for years but never seen these creatures before. Thanks. Chris PS. All plants and redmoor wood bought from TGM.