Thanks for all your help. I have so many tanks to take care of which includes (2) 30g (1) 15g (2) 10g we have tiger barbs, sliver dollars, gromets powder blue and 3 spot ones, mollys, zebra tetra, black skirted tetras and white skirted tetras and an albino tiger barb. Have 3 Plecos one is a gold nugget and 2 chinese alge eaters. I do have my hands full.