Aquascaper
Fish Aficionado
Play around with the powerheads, raise them away from the substrate, aim them at the glass, aim them at rockwork, etc. The best way to 'see' the flow is to mess about when you've just added food, watch where the food goes
The refugium/sump itself doesn't do anything apart from increase the total water volume of your system, it's what's in there that does the work. Fill it with live rock and it will remove Nitrates, fill it with macro algaes or mangroves and it will remove Nitrates and Phosphates. This reduces the nutrients for bad algaes to absorb and grow with thus making the tank 'healthier'.Does it make the tank any healthier? like take out bad contaminants or anything, stop algea, anything good (other than what skifletch stated)?
Simply.......yes. The benefits are asthetic as well as physical, it allows ugly equipment to be hidden as well as creating an undisturbed area where macro algae can grow without being eaten by herbivores. Not to mention a QT area for any troublesome additions to the tank.I know a sump is more water, more areas to put equipment, and stuff like that, how important is it to make a refugium or sump, do they really have MASSIVE benefits?
You've answered your own question.When water evaporates, do you top it off with saltwater or with ro/di water? when i do a water change i top off with saltwater obviously, but sinec evaporation leaves behind salt, raising the salinity, wouldnt i want to add ro/di water?