Well,I looked at my tank a few hours ago and so mt black molly stuck to the filter.I was scared he had died SO I took the net and right when he saw it he tried to wiggle out bit couldnt.I pushed him out then.He hasnt gotten stuck but I'm STILL not sure

Sorry to hear about your Molly.Ant time a fish gets stuck to a filter,the first thing to do is to turn the filter off,before trying to get him off of it.Keep a close eye on him-he could have some internal damage.You also want to keep your tank parameter's as pristene as possible as to not give secondary infections a reason to set in.Good luck,I hope the little guy pulls through for you!