Leaves going brown and brittle?

Recently the leaves on my plant have started going brown and brittle on the tips; some more than other. Why is this?

Looks like slight nute burn, chill on the nutes a bit.

yeah, okay that sounds about right, I did go abit mad with them, i'll give them water for abit then flush them in 2 weeks.

ya that is nute burn...
try flushing your water and then letting it dry out and chillax on the nutes bro