Hay guys I. Got some nuclear polups that have not opened up all week are they deaad I messed with them a little n they won't close any more then they already are any ideas what can I do to get them back helthy I just did a 50 percent waterchange so ill give water specs later once it settles in n the only other change is mh 20000 k from the t5 n its just 2 400 watt over a 135 gallon