Have just been checking some previous posts on here and am surprised to see a lot of people are against syphoning their dirty substrate. My normal cleaning cycle is a partial water change every few days and every 2/3 weeks a big clean which involves removing the fish from the tank and placing in a temporary bowl, syphoning about half the water out of my tank which removes a lot of dirt, wiping the inside of the tank to remove any algae, I also clean the filter in the remaining water in my tank and scrub my driftwood if it has noticeable algae on it. The new water is treated so to remove the chlorine from it and it gives some sort of protection to injured/stressed fish. I have had a few instances where fish have died after or before the change and hopefully with my newly purchased API freshwater master test kit these deaths will now be a thing of the past. However on checking some posts here a few people have said they don't syphon the water as it is good for the bottom feeding fish and plants. They say they do water changes but don't disturb their plants or substrate. Not syphoning would save me loads of time, but I'm just wondering what people views where and what their own tank cleaning methods are?