08-18-2008, 05:48 AM
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I have begun to set up a large fish tank (190 litres). I have put in gravel and sand, no problems. I left some bog wood that I bought from a pet shop outside in a bucket of tap water for 3 weeks. I put the wood in the tank and these crawling beasties are EVERYWHERE. They appear to like wood best, then sand, then gravel. They are about 5mm in length. They have bodies in about 30 sections. The first section is a black head then there are about 5 translucent sections. Then there are about 20 brown sections and a final 5 translucent sections. They appear to have numerous legs but its hard to be sure because they are so small. The tail section may be pointed or tapered in a y shape but again, too small to be sure. They are definately crawling over the substrate rather than hanging/wrigling like mosquito larvae. I took the wood out, boiled it, emptied the tank and poured in water as hot as I dared and still the sods didnt die!!! They look edible to fish (fairly tasty, I would say), but what if they are parasitic? Does anyone know what they are please before I add my fifty quids worth of plants and get stuck with them for good.