Up until today I have not noticed any issues of foam gathering at the edges of the surface. Over the past 2 days, I have removed crushed coral and left it out completely. I have also done a 25% water change and a 50% water change to try and get my pH levels in a desirable range for the fishless cycle. Now today, I am getting a very thin foam along the surface edge. It is not something that is consistantly foaming along all the edges. Only a strip of it on the front end of the tank and a small area on the left side of the tank. I am attaching pictures to try and give a better idea. I am using ACE Hardware Ammonia as has been highly suggested and it does not bubble or foam at all upon shaking. . I did in fact re-dose the ammonia last night as it had dropped down to 1ppm. Aside from that and the water changes, I am at a loss as to what is creating this foam. I have tried scooping it out with no luck since it is such a thin film. The pictures seem to make it look much larger than it is but I think that is because they are taken so close up. Does anyone have any idea what might be causing this? I always make sure my hands are clean and free of soap or lotions when working with the tank. Should I try to do another water change to try and help keep it down? Or, should I just not worry about it until my cycle has completed? Even if I leave it alone till then and it remains, how will I be able to get rid of it? Thanks in advance for any advice, suggestions and help!
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