u can try this,take yr LR n put it into another tank or a pail then u use 2 water pump filter to let the water pump at the LR n also use a heater too.
let it pump 4 aronud 1 week,this is to cure yr LR but dont know it will help u anot ba u can try it.....btw i didnt try it b4 keke
GD LUCK TO U.....sorry if i said anything wrong.....