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I have still a GHL dosing pump here. But it's not a "smart" version. The screen brightness is going down after these years so reading it is also hard. In the past i already replaced the screen/board for a new one. But it expensive. So i was wondering: would it be possible to convert this "old"...

Got a 3d printer for a while now and picking up the 3d modeling (still a rookie :P ). I was thinking to make something for inside the eheim 2217 to prevent the foams and the especially the white foam to be crushed by the media on top of it (substrat). More people have tried this or other filter...

a friend want to buy a second hand tank. but it isn't that clean any more. with a good brush and water you can clean most of it. but the problem are the kit borders/connections. on it you find some Algae. always fun :silent: you can't brush it hard cause then you will destroy the kit and...

I am just wondering. i have an eheim 2217 and sometimes i hear some air inside it. but where is the air coming from? once the filter is completly full of water how is it possible it blows air sometimes inside? when it blows the air out i gets inside the co2 reactor (aquamedic 1000). and ofcourse...