Ok, I have a major update, but not necessarily by choice. I completely removed all of my sand and rock, then replaced with all new. Here's why:
When I did my original aquascape, I used rock that I aquired from a friend. The pieces weren't ideal, but I used hydraulic cement to make structures that I was happy with... bonding smaller rocks together to make larger ones, making overhangs etc. Everything was fine for the first three months. I then noticed a couple of the cemented joints starting to "break" down. The cement was getting soft and starting to deteriorate. The small dark grey parts of the cement were flaking away and making the sand in the area look bad. Luckily, the "infected" areas were not really structural ones so I didn't worry about it too much. The areas where I really needed the support were still solid and completely intact. Until about a month ago when those areas started to also break down. Now the sand really looked bad and I was going to be facing a landslide of reef rock before too long. On top of that, I was never happy with the sand. To start off, it was REALLY dusty. It also wasn't consistent. It had larger chunks of stuff that would color up with surface algae and then look really out of place in the sand. So being completely fed up, I ordered up 120 lbs or Marco Rocks and Tropic Eden Miniflakes. In the past, I used Marco Rocks in my nano and was 100% happy with them.
I put all of my coral in my sump and performed a 24 hour swap. First getting the rock out and then the messy job of getting the sand out... without removing any of the water. Here it is with everything out:
IMG_5122 by
Toby Broadfield, on Flickr
I think I clogged up about 20 filter socks throughout this process lol. It was very late at this point so I let the tank clear up over night and then I continued on with it when I got home from work the next day. I did my aquascaping with the new Marco Rocks. Since they sent me a nice variety of large pieces, I didn't have to bond anything together to get the look I was after. Next up was the Tropic Eden sand. Let me tell you, this stuff is basically dust free... it's unbelievable! Then I simply moved the corals back into the DT and I was good to go. I used a bottle of Dr. Tim's All-In-One to make sure I didn't have a crazy cycle. All parameters tested great every day. I had a very minor, 1 week long diatom bloom. And that was it. I have had great results with Dr. Tim's in the past and the results were equally impressive this time around. Back in business:
IMG_5285 by
Toby Broadfield, on Flickr
A quick video I made for documentation:
https://www.youtube.com/watch?v=rbhYkA5m4O0