Not innitially, but eventually it could be harmful.
not at all but if the snail is really small the goldfish could nibble on it and eventually die.i prefer not tooif u said thankswelcome
Not at all
Paint.
You really should not mix Windex with Kirby floor cleaner because there are different acids in them which could cause a bad chemical reaction and would harm your health.
No. The only species of shrimp that I know of that are called "Cleaner Shrimp" are all marine species and can not live in fresh water.
No they can not as crabs will use claws to catch and harm them.
Go to the plaza then go to the goldfish zone then there is four places you could go through in the goldfish zone
== yes.
goldfish will survive in tap water but it is best to put a bit of chlorine control in the water plus you will need a filter if you want the water and tank to stay cleaner for longer :)
Most likely not. If there are goldfish, then there are definetely going to be predators. Goldfish are small, and one predator could eat about 5 goldfish. It's very unlikely, but possible.
Provided that you do not have a singletail goldfish in your tank as they are faster more aggressive swimmers. Also make sure you check all your tank decorations to ensure that the fish cannot harm themselves on anything sharp or pointy.