Something is growing in my freshwater 46g

[pnadon]

https://imgur.com/jEVFyyd

Tank has Tetras and Corys. APS test results are good. Unchanged for months.
Anyone know what it is and how I can stop it/clean it?

Thanks!
Paul

[pnadon]

Here is the response I got from r/aquariums:

"Black hair algae. Get some Siamese Algae eaters- 3 at least. And do a damn water change with a gravel vac for the gunky brown crap- it's fungusing from overfeeding. Stop that. Your fish will not starve to death. Do several 10% water changes over the next week or so. "
--u/TheKolbrin

[matttimms49]

Not seen anything like that before sorry. I'm sure someone else on here can pitch in with some experience though.

Best of luck with sorting it out though.

[new_hobby]

If you are talking just the brown stuff, then yes, it is just somekind of fungus from excess food remain, I had it in my tank before because I feed some food that the fishes don't like and it remains in there. So just vacuum that brown stuff out, do a water change, and cut down a LOT of feeding for 1 week. I hope it helps.