My aquarium setup: I have a 130l aquarium that has been running for 5 years. It's stocked with guppies, endlers, different tetras, danios and corydoras. I also have some nerite snails. The aquarium is planted with anubias, aponogeton, christmas moss, cryptocoryne, helanthium, hygrophila, lilaeopsis, limnophila, monosolenium tenerum and riccia fluitans. The internal filter has different mechanial and biological materials (7 levels in total) and works great. I feed the fish twice a day and because I have a lot of fry swimming around I also feed them about 4 times per day (with fry food). The light is on for 9h per day, the temp is 25°C, the parametres are always normal (I test the water once per month). I do a WC once a week and always vacuum the gravel as well. 
Now to the problems. I have had an aquarium for the last 20 years and I never had unwanted snails. Well, now I do. I seems I brought them with a plant, even though I took the necessary precautions. By the looks of it, it's some kind of small ramshorn snail. I have no idea how to get rid of them since there are too many to remove manually, the traps don't work and I can't use chemicals because I also have nerite snails. Any suggestions? There is also this weird translucent round thing crawling on the glass and on plants (see photo) - could this be snail larvae?
I also have another problem. There is this white stuff growing on the glass, on decorations or on the gravel. It's not worms. It's stringy, it honestly looks like thick spider webs. Any ideas what it might be? I remove it when I vacuum the aquarium, but it just comes back in a couple of days.
Now to the problems. I have had an aquarium for the last 20 years and I never had unwanted snails. Well, now I do. I seems I brought them with a plant, even though I took the necessary precautions. By the looks of it, it's some kind of small ramshorn snail. I have no idea how to get rid of them since there are too many to remove manually, the traps don't work and I can't use chemicals because I also have nerite snails. Any suggestions? There is also this weird translucent round thing crawling on the glass and on plants (see photo) - could this be snail larvae?
I also have another problem. There is this white stuff growing on the glass, on decorations or on the gravel. It's not worms. It's stringy, it honestly looks like thick spider webs. Any ideas what it might be? I remove it when I vacuum the aquarium, but it just comes back in a couple of days.
). I'll try the lettuce. I've only tried zucchini and only a few snails were interested.
