surface agitation

Hey folks, got a simple question here, hoping for a simple answer, haha. I’m still in my cycle phase, all going well so far, and I have finally got the water level holding steady in the overflow, skimmer has stopped fluctuating as much, etc… I just want to gather some thoughts on whether or...

so I’ve had this tank over a year. Always struggled keeping coral and maintaining water quality. it’s only 60L and exactly the same as the Fluval Evo except slightly taller + a filter grid at bottom (see pic) I’ve noticed a surface biofilm problem despite good agitation, and my filter floss on...

When I turned flow oftoday to feed acans, I noticed a slick film on the surface and a few bubbles caught under it. It’s a bit harder to notice with the flow on. I have both return bills and wavemaker pointed at surface for agitation and a Nero 3 on the way. Is this normal ?

Hello everyone! So I am doing my research regarding installing a battery backup for my aquarium and have come across a few questions. I am hoping someone can provide some input. 6 foot 165 gallon aquarium. I am currently running 2 Reef Octo Pulse 4's and 2 Tunze 6095's for flow. These are...