Thanks for ad. Decided to give this a try. Have 3 low tech planted tanks and will be setting up a new tank this week consolidating other tanks. It will be 135 gals with a sump. 2 36" Marquis dual T5H0 lights. Have plants to transfer over...crypts, swords, giant Anubis, hydrogrophillia, Java fern, Christmas moss. I havnt bought substrate yet as such a big tank. Eco complete recommended but will be expensive. Will be home to my Rainbowfish, Congo Tetras and a pair of angels. Suggestions for economical substrate and fertilizing welcome. Oh and rainbows need weekly water changes.