Ive been having problems with my water flow lately. I started my (home-made) window farm a few weeks ago with just one bottle on top of my water reservoir, and the water flow was excellent, a real continuous flow of water pouring down. Yesterday, I decided to add two more bottles to my system. Now with the added height, the pump does not seem able to send enough air pressure and the water never reaches the top: it simply spurts up up up, and then back down again, just before reaching the curve in the tube that would send it trickling back down. I am using a “Marina” air pump, model #75, which has a 50-100 L tank capacity. There does not seem to be an air escapement from anywhere. There is only occasionally very little bubbling in the reservoir. I don’t understand what is causing this problem.
Does anybody have any suggestions?
Also, we have recently switched from using a conventional, all-purpose plant fertilizer to using an organic one from fish and seaweed. Do these fertilizers provide enough nutrition to my plants? (basil, coriander, parsley, hot chilies). Is there any downfall to using these? I noticed quite a deposit of it sticking to the tubing, and am worried that it might clog up somewhere eventually. Does anyone have any experience with these natural fertilizers?
Thank you so much!