Okay so my apartment building is going through a filter cleaning that will take 2 weeks it has been 9 days now and the snail/fish poo is really unsightly. Now all my parameters are fine 0 ammo/nitrites 10 nitrates 7.4 PH. Now what I was thinking is I could siphon my substrate and get most of the poo out. Then I could add the water back into the tank after I strain the poo from the water (through a filter sock) so I don't have a low tank volume for the next 4-5 days. My tap right now is totally out for water changes cause the readings are 2-4ppm ammo 0 nitrite 20-40 nitrate and a Ph of 8.4+. The manager has reassured me it will go back to normal standards once the filter is change but the PH might go from the old 7.6 to a lower level (which is fine with me). So sorry for a long post but will my idea work? Or should I just leave the tank alone till next week?