any hardware store in the section that has mailbox numbers and such. (or steal them from someone that is giving them away).
i think they would be questionable stregth and could potentially leach phosphate. Unless you can determine exactly which plastic they are using, it's a risk. The fiberglass driveway markers are fiberglass and inherently inert.
Yea i had to order online and ordered 20 i used 2 lol
how many u need ? they r 30 inches long each
At 30 inch one would be enough
the're pure fiberglass AFAIK. I know that because I have tried to push them into the frozen ground without wearing gloves. That was unwise. Fiberglass is just like is sounds. Glass spun out into fibers. It's as safe as your aquarium itself. I would go with white ones just in case the coloration has anything in it, but I think, since it's coloring glass, it has to be chemically bonded or contained colorant (in the glass) . I have used two short pieces in my tank for about 2 years now and everything seems manageable for me.
