Yep, got both in the sump. More cheato though than sea lettuce right now. No gfo. I make a fish "smoothie" for feeding my fish. Using several different frozen cubes placed into a tupperware in the fridge and allow them to "slump." Mix and then strain off the excess watery liquid. It contains lots of nitrates and phosphates. Mix in a bit of vitamins (selcon) and the mix stays good in the fridge for a few days. Fish love the "smoothie"

So with the smoothie you can feed a bit more without nitrates and phosphates going sky high, plus the cheato and sea lettuce helping out. Works pretty good.