Clear film okay or not

[Hammy]

Hello Everyone thanks for letting me join I’ve asked a couple of questions and gotten some great advice so I’m addressing the issue. What I’m wondering now is I have an external filter and the pipes seem to build up a clear like film and every so often some will come of and gets into the aquarium. I’ve washed the pipes a couple of times but keeps happening is this natural and is it okay. It’s fresh water shrimp I have in rainwater aquarium. I’m happy to leave it if it doesn’t cause any harm/problems. In the centre and bottom right of picture you can see what I’m talking about. 

[sdlTBfanUK]

I think that film is fairly common and nothing to worry about. It doesn't look very nice but should be harmless to the shrimp, they may even eat it? I get the same with my buckets and dripper, I think it is probably a build up of something  (maybe protein) similar to the film you get sometimes on the wateer surface and some people use a protein skimmer to remove it from the surface? It may have come from the container you collect the rain water in?

Simon

[Hammy]

Yeah I’m not sure what it is it seams to build up in the pipes only and then comes off in little patches. I’ve been sucking it up with a turkey baster when ever I see it. I might try and cover the pipes up so no light can get in and see if that helps any

[jayc]

Most likely to be Biofilm.

Do you see your shrimp eating it?

[Hammy]

Yeah I have, now not so worried thanks