Bro, i dont think that you read what I wrote. First of all I said that I`m in the last week of flowering. Second of all I said that I grow hydroponic. That means I CAN NOT take my plant and flush them over a toilette, because they are not in regular pots.You lost me bro?you are in the first week of flowering right flushing is a good idea get rid of any salt build up and rince the vegging nutrients out it is not essential but i always flush at least 3 time during flowering.when you flush the plants use water set at 5.0/5.5 just water bro no nutrients let the plants dry under the lights flush over a toilet till water runs clean.then start your regiment of bloom nuts you should have been feeding some formof bloom nuts from the start of the flowering period.the plants will still produce if they are just fed water but the yeiled will be far less.flush again at around week 5 same has before.then in week 8 if it is a eight week strain and the tricones are turning amber then feed just water set at 5.5/5.5 once this week is over cut trim dry and enjoy.