Hello. I've had a Fluval Evo 13.5 reef tank setup for a couple years now, and it's deteriorated quite a bit. Corals have slowly died with a few hanging on still. Trying to dive back in and get things fixed. Big algae problem right now. Struggled to fix it. I think I've narrowed my issue down to high TDS in my RO water. I get the RO system running well (I'm on well water, post RO water 100 TDS before DI), but after a period of time my TDS goes through the roof. Well water is about 500 TDS straight out of the well. And at times I'm reading 500 after RO filtration. Anyone else deal with this issue? It absolutely kills my DI life. How often do you change your RO membrane?
