bristle worms can be bad!! when get to be 2-3in. can-will eat coral and i have seen them eat -kill fish if you can kill it now befor it kills somethig use hermits crabs to clean your tank by the way a arrowcrab will eat them.
need help i want to make frag plugs - disks i made some thay came out ok but i want them to come out beter has eney one used grout? if so what is the mix formula you use? and or what is the portland mix formula you use? i used 1 cup pot. to 3 cups sand but thay came out like crap and brake...