best way to get old dead rock white again???
 

looking for help to get my old dead rock white againit was removed for my tank awhile ago after it had turned green with algee that i couldnot get rid of now i am looking to get rid of this green ting on the rock what is the best and fastest way to do this????? i have boiled it and scrubed it but i still cant seem to get rid of it any sudgestions pls

Soaking in Vinegar/Water might loosen it up. (couple days)

Pressure Washer? :mrgreen:

lol thats funny ryan

if it's dead, you may as well sun-bleach it. i realize it's not the best time of year for that....but it's proven very effective for me. and most importantly...it's safe.

yai guess ill have to wait for the sun to return to do that would a 100% vinagar bath work?

Vinagar disolves calcium.So if you do it becarefull,you wouldn't want to get up the next morining and find a pile of mush.But maybe it will work to disolve the outside layers with the algae on it.But I think after you would want to put it in fresh water to dilute the vinagar that seeped into the holes in the rock.Plus the vinagar will act as a carbon source for bacteria,will be a good kick start for your cycle,but make sure you do a water change after cycling.It may cause a large bloom and use up all the oxygen.

ok so more or less i am at a loss for this rock till next year when it gets sunny again?????

If it was my rock I would first put it in a bucket with water and leave it a couple days.Then test for No3.If I got a large No3 reading I would dump the rock.If a low or 0 No3 reading I would get a steel brush and scrubb untill the rock is white.

You know that if you maintain your water quality within the generally accepted levels as far as calcium/alk/mag. and have decent lighting that rock is probably going to be purple in about 6 months anyway so why bother?