Who Gives A Fish Forums

I'd stick with 8.2. It's what most reefers recommend, and it's worked for me. Just don't chase numbers too hard, or you'll drive yourself nuts.

Thanks for the advice. I'll set up the 20-gallon tonight. Should I keep the lights dimmed?

My Discus pair started fighting after laying eggs. Should I separate them or let them work it out? Tank is 55 gallons, temp at 84F, pH 6.5, with sponge filter and driftwood. They've been together for 8 months.

Has anyone tried ceramic cones? I saw some at the store but wasn't sure if they'd work. My tank's 30 gallons, with a internal filter and gravel substrate. Temp's at 82°F, pH 6.6. I do weekly 25% changes.

I tried Cryptocoryne Wendtii in my hard water tank, and it's been growing slow but steady. Not as fast as others mentioned here, but it hasn't died either.