Hey i have these tw hammers and they are doing terrible they recently (in the last two days) closed up for no reason even if i feed them they still are closed i also have a torch but its doing amazing i tested my water only concern is phosphate is 10 ppm but i added the seachem phosphate remover and i recently got some cheato algae only other thing that could be wrong is nitrates are low and i cant seem to keep em up they stay between 5-10 ppm