Ok I recently added some swordtails to my 20g because I rehomed a few fish and now my crypts which were full and beautiful are now decimated and down to like 5 or 6 stems and leaves from like 20. is it the swordtails to blame or possibly the fact that I just started using root tabs? I do see like 4 or 5 new stems coming out so idk what to think or do! All my other plants are fine! The crypts have been in the tank for about a year.