I'm due to clean my aquarium for the 1st time since my new set up. I started of with a few casualties in the first few days. I then completed a one week and two week course of ammonia/nitrate and chlorine remover respectively. During and after this I gradually added new fish and since then they appear to be healthy.
I'm going to take out 1/3 of the water, take out the filter from the pump and clean it with this water. I will then throw this water away and replace in the tank with tap water. I will also clean any ornaments with tap water. The gravel on the bottom I will spread about, with the intention of unearthing any dirt, allowing some of it to be sucked into the pump.
Any objections or other tips? And will my tetras/danios/pleck be ok after this?