Fast/Slow fuse?

What I need is 6x30mm 10A 250V slow blow fuses. So far, I found clear glass 8A 250V slow blow fuses and ceramic 10A 250V slow blow fuses.
Are ceramic tubes replaceable with clear glass tubes?

thx

Thanks.
I just wanted to check if the amps work, but I could not find right type of fuses.
I tested my amps with those types, and at least found out that the amps work!
I am not going to use those fuses any longer and will order correct types right away.

I've been to two ACE hardware stores and one RadioShack, but they all don't have them. I guess they are not real electronic shop.
What I want is 10A 250V slow blow fuse and 4A 250V fast acting fuse. I will go for online.

I guess using a fast acting fuse instead of a slow blow fuse may burn the fuse faster, but may not affect other electronic components. Am I right?

A quick on line search did not result in any.
Some suggest that lower amp fuse may work. For example, 8A 250V slow blow fuse may work well without affecting other components.
Any idea?
thx

Thanks for the link. But one is for fast acting, and the other is (slow blow) seramic type. I want a clear glass slow blow fuse.
Well, I will keep looking. I asked the 2 ACE store and Radio Shack about electronic supply store in our area, but they had no clue. I guess I will ask around to some electronic repair folks.