Not wanting to argue here, but what harm could there be in putting a very thin (1/2 inch or so) of sand on the bottom for aesthetics? It does look very unnatural without any substrate.
The reason I ask is I am in the process of setting up an in-wall 180 and I just put the sand in the bottom (about 1/2" to 3/4") this past Saturday. My buddy is coming over to help me finish plumbing the tank next Saturday and we will start to drip the ro/di water when we are finished.
Bomber, do you think such a shallow substrate can/will cause problems in the future?
I have the same type substrate (3/4") in my current 220 that has been set-up for 8 years. About 3 1/2 years ago, I had an event occur which suddenly, for no apparent reason, nearly fatally crashed the tank. I am not sure what happened (I think my biological all died suddenly). I was doing 30-50g water changes for 13 straight weeks to try and stop it. But in the end, I failed. I could not stop it. I even had two well-respected owners of LFS come to my home and have a look and take a shot at what the problem was. I also took water to my buddy that is a chemist for the local water company and he said there was nothing wrong with the water. I am still stumped to this day. The tank has always had a small bio-load. I am trying to avoid this happeneing again at all costs. I have read and re-read your threads on DSB and understand your disdain for it, but my bed was not even 1 inch. Maybe I am stretching here, but like I said, this cannot and will not happen again. I lost a lot of fish/corals. Not to mention the GIANT headache and having to start from scratch and also the battle with hair algae shortly after the crash.
Although, some corals/fish did survive (about 50%) and I still have to this day.
Thanks and sorry for the long post. Please give me your advice. I still have a 6 days to think about getting rid of the substrate.
P.S. Your probably wondering why a construction worker needs help plumbing a tank?
I have 2 ruptured discs in my back and I am having surgery Jan 13. Right now, I am half crippled. Cant walk right, cant stand up straight, pain shooting down my legs.....life generally sux right now. But I want to get this tank set-up b4 surgery and get the water in and get it circulating and cycling while I am recouperating for 2-3 months.
Wish me luck on the surgery and thanks in advance for any advice from any of the experts out there.