Bare bottom or sand

303travism

Dolphin
M.A.S.C Club Member
#1
I'm doing a shallow reef 20"x21"x12" which is right around 20 gallons plan on running a fug under it 30-40 gals and have a 120watt Evo for over it. I have thought about going bare bottom but am undecided want to see if you guy could throw some pros and cons at me to help with the decision.
 

that0neguy1126

Registered Users
M.A.S.C Club Member
#2
Bare
Pro - Looks sleek.
Con - Hard to keep clean. Looks bad if not clean. Unable to keep some fish (like sand sifting goby's).

Sand
Pro - More Bio Filter. Able to keep all fish/critters.
Con - Extra Bio filter not needed with such a large fuge if you plan accordingly.
 

static reef

SCMAS Board Members
S.C.M.A.S BOD
#3
i have always wanted to giveone a try but thenwife wont let me. keep in mind that it take a while to get the floor of the tank to be coved in coraline algae and makes the tank look a little wierd at first. IMO
 

Haulin Oates

Reef Shark
M.A.S.C Club Member
#4
Bare bottom or sand

Was just sand less for about a month. Hated it. Just poured an inch of fine white sand in today. So far I like it. (I had black sand and colored pebbles before, the pebbles were secreting silicates)
 

Smiley

Nurse Shark
M.A.S.C Club Member
#5
nice thing about bare bottom is it makes it easy to siphon detritus out when doing water changes...another thing is you will be able to have higher flows without sand blowing all over filling your rock crevices...

bad thing about bare bottoms is you wont be able to have a wide variety of fishes/cuc. You'll also have to have more mechanical filtration to make up for lack of bio filtration.
 

280g-reefman

Butterfly Fish
M.A.S.C Club Member
#6
I pondered the same thing for awhile when setting up my tank. Ultimately i ended up just doing a 1" sandbed in the dt and i love it. Easier to care for than a dsb and looks really nice. I have the dsb in my .
 

jahmic

Reef Shark
M.A.S.C Club Member
#7
I setup a 20 gallon long barebottom back in September. It's a zoa tank, and I didn't want to worry about the flow from my MP10 pushing around sand and/or burying recently cut frags...the other reason I went with it is because it makes removing detritus simple. I've found 2 areas on the bottom of the tank where sediment starts to settle, and just vacuum it out every week with my water change.

I like the simplicity and the lack of areas for detritus to hide and accumulate in such a small system. It does limit livestock choices, but I opted to go with just a single fish in that tank (pygmy angel) and had no real need for a sandbed. As far as looks go, my tank was placed on a table with a gray ceramic tile top, so it didn't look too bad initially, and I'm starting to see coralline algae cover the bottom of the tank. It looked odd at first with rock and no sand, but the clean look grew on me...I'm considering going with a barebottom tank again if I do a larger build, and would probably just run a sandbed in my fuge for additional filtration and buffering.
 

Rebel

Anthias
M.A.S.C Club Member
#8
Years ago I did a BB on a 125 in-wall at home. I used the "starboard" stuff that is basically plastic cuttingboard. I glued rubble and some sand to it for texture, and it did look a bit artificial for about a month. Then, it started to cover rather quickly with coralline etc. It was an sps tank with super high flow and I was dosing like mad--so it covered up nicely (plastic covers more quickly than glass, IME). After a year or wo the entire bottom was encrusted and piled with different shapes of coralline--it was truly neat to see the different ways it grew and piled up. I really did like the simplicity, the siphoning, etc. I would do it again for sure.
 

jahmic

Reef Shark
M.A.S.C Club Member
#9
Rebel;223954 said:
Years ago I did a BB on a 125 in-wall at home. I used the "starboard" stuff that is basically plastic cuttingboard. I glued rubble and some sand to it for texture, and it did look a bit artificial for about a month. Then, it started to cover rather quickly with coralline etc. It was an sps tank with super high flow and I was dosing like mad--so it covered up nicely (plastic covers more quickly than glass, IME). After a year or wo the entire bottom was encrusted and piled with different shapes of coralline--it was truly neat to see the different ways it grew and piled up. I really did like the simplicity, the siphoning, etc. I would do it again for sure.
I really like this idea! Any chance you have any old pics laying around?
 

Rebel

Anthias
M.A.S.C Club Member
#10
I'll have to check when I get home. I simply used PVC glue and spread it with a cheap paint brush (sort of--not very compliant). Then sprinkled with lots of sand and waited. And waited. I epoxied a few chunks (no bigger than marbles) in a few places and tried to build up some smallish mounds by mixing sand and PVC cement together in a cup--not awful, but not how i thought it would go. I was mostly looking for textures and undulations rather than a smooth appearance. Like I said, the coralline took care of that relatively quickly.

I'll see if i can scrounge up a pic later. Then see if I remember how to attach one here!
 

jahmic

Reef Shark
M.A.S.C Club Member
#11
FWIW...I've also seen some pics of tanks that used an "epoxy/sand" bottom, and it looks pretty good. You end up with the look of a sandbed with easy clean-up and no risk of blowing sand around with high flow. ;)
 

303travism

Dolphin
M.A.S.C Club Member
#12
Bare bottom or sand

My tank will be an open top and I think all sand sifters are jumpers or at least everyone I've had I'm thinking bare bottom because its going to be a tank at work plan on only have 2 clowns and nem in it zoas and maybe some other things but majority z and p's and I like the idea of easy clean up and clean look.
 

jda123

Dolphin
M.A.S.C Club Member
#15
Aragonite also provides buffering and phosphate binding. If you have some in your fuge, then you are covered. Older sand beds are said to "leech" phosphate, but in actuality, they just cannot bind any more. I am a sand guy, but I do start to replace it 40lb at a time after about 3-4 years - I just siphon it out during a water change and drop the new washed sand in through a funnel... I can get about 20lbs per water change.

I have moved to waveboxes (only recently, to my regret) which don't even disturb sugar sandbeds yet keep the corals happier than all of the massive amounts of "flow" that I had before.
 
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