Some will be spotted, some plain.
Size from 3mm up to 8mm - young snails that will grow fast and should live for quite a while.
They will breed readily if well fed, but once all the algae is gone, if you don't over-feed them, they will slow down or stop breeding, allowing you to control the population levels.
They do not eat live aquarium plants, only dead ones, algae (including annoying hair algae), and leftover fish food, etc - great clean-up crew.
Shipped next-day tracked via Royal Mail, damp but not in water, in a protective plastic bottle.
I will not include any brown in this premium mix, but i do sell brown ramshorns too, see my other listings for a lower cost mix that includes browns.
I also sell yellow cherry shrimp if you're interested.
PLEASE NOTE: while I post using a next day service, it is usually a few days before I am ready to post them to you. Despatch is often on a Wednesday for delivery Thursday, but it can vary. I will keep you updated once the order is received. I can normally vary the despatch day to ensure you are in on delivery day. Check junk for messages if none is received after ordering.