
Only green algae. I recycle rain-water, I used a 1000lt WHITE/CLEAR tank everything went green!
I still filtered it and it all came out clear and at 000tds
Only problem is/was It grows back even though its invisible to the naked eye!
I had to bleach out my pump (drastic) flush the system out, change resin (change filters obviously) none to pleased... never again!
Blacked out tank using thick plastic then encased in wooden tank box/cover (cheaper than buying a black tank (well I couldn't get recycled one).
No more algae!

Yes I know... boring really... but no one else replied