Haha yeah that's what people told me. I have a hood but a few inches of space open in the back. I've never had to top off but I do have a lot of water splashed onto the hood. I'm surprised you lose water so fast that it is noticeable.
Hello; I have placed a sheet of glass above the splash with success. The water drops hit the glass and largely drip back into the tank. The glass does not have to seal the top of the tank, just catch the spray or bubbles.
From my experience, there really isnt much you can do if you dont put a hood or some type of cover (glass etc.) over the tank. My tanks are all open top and I just add water when it needs it.
I just add water when I need to the water level in my setup shows fine...but my sump levels drop so I just had prime to the new water and pour it in until I hit my proper water line.
Sent from my PC36100 using MonsterAquariaNetwork App
Thanks for the input guys, I put a sponge over it which worked for like a month but now its starting to disintegrate and I don't want it harming the water at all. its only a concern for my 20 gallon puffer tank cause I have an overpowered sponge filter and the bubbles sometimes splash enough water to leave a puddle on my counter which is where my tank is.