Is it safe to draw on the bottom of my tank with sharpie?

hnf2k

hnf2k

Active Member
im making a refugium and i wanna draw out where im gonna glue everything down, and then measure those lines instead of doing it all blind. can i draw with a sharpie marker? or would it be bad for my tank?
 
gregvabch

gregvabch

Active Member
i've got some lines in my 20, but you could always use something that would come up easier too, like a grease pencil or even a crayon.
 
squidd

squidd

Active Member
Put your marks on the "outside" of the tank...You can see them through the glass/acrylic...
Then after it's all glued up you can clean them off without baffle interference and the "cleaners" won't affect the water...
 
sly

sly

Active Member
Even though a sharpie is non toxic, it may mess with delicate fish or corals and will eventually come off in the water. If you have a glass fuge, you'd be better off drawing on the outside. If it's opaque like a plastic tub, then you can scrape your lines with a razor on the inside.
 
ajwaters

ajwaters

Member
ive always wondered this but with something alittle different.
one fish store mark the bag that hold the fish/coral witha sharpie the price on it for when i go to the counter to pay.
then if i put that bag in my tank to acclimate. does the marker where off. i've never rubbed it or anything to see what happens.
 
texasranchers

texasranchers

Member
To be on the safe side, I would would doodle on the out side of the tank.
AJWaters, "...fish store mark the bag that hold the fish/coral with a sharpie..."
Something else to worry about:scared:
What I do is place water and fish in a small empty tank(1 g) Then put the air hose/stone, and drip line into it. My tank water brings up the temp of the store water just fine. I really never have known what contamanates the outside of the bag may have. I may be too cautious.
TR
 
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