L Lee New member Oct 2, 2009 #1 i have found some black rocks down the beach what i want to use in my fish tank but i think it might be smoothed down coal could i still use these rocks in my tank.
i have found some black rocks down the beach what i want to use in my fish tank but i think it might be smoothed down coal could i still use these rocks in my tank.
S strangechild New member Oct 2, 2009 #2 ya check by puttiing them in water for a while and if there ok boil them before putting the in so that yr fish dont die
ya check by puttiing them in water for a while and if there ok boil them before putting the in so that yr fish dont die
