• Welcome to TONMO, the premier cephalopod interest community, and birthplace of #WorldOctopusDay and #CephalopodAwarenessDays. Founded in 2000, we are a large community of experts, hobbyists and enthusiasts, some of whom come together when we host our biennial conference. To join in on the fun, sign up. You can also become a Supporter for just $50/year to remove all ads and enjoy other perks. Follow us on Twitter for more cephy goodness.

Substrate question for all you ceph keepers

Colin

TONMO Supporter
Registered
Joined
Nov 14, 2002
Messages
3,985
In fact, you can kinda make out the differnt sized substrate in the cuttle avatar i use :smile:
 

Jean

Colossal Squid
Registered
Joined
Nov 19, 2002
Messages
4,218
For our big octopus we have artificial rock over most of the tank with a "playpool" of native silica sand mainly for the benefit of the crabs as P. cordiformis doesn't burrow as a rule. In the small octopus tank (O. warringa/huttoni we have a deep sand bed (around 30-40cm) of fine to medium grained silica sand. In both cases there are loose rocks for them to aquascape, shells etc

J
 

Jean

Colossal Squid
Registered
Joined
Nov 19, 2002
Messages
4,218
shipposhack;105890 said:
Is your small tank not filtered with fresh seawater? Do you think the DSB helps with NO3 and PO4 reduction?

All our tanks are flow through seawater. So NO3 and PO4 are not an issue (I LOVE being able to say that :biggrin2: ). The DSB is for the octis to burrow in so they don't disturb the undergravel filters (otherwise they live under them :roll: ) Also it lifts the display up to make it easier for visitors to see the critters.

J
 

DWhatley

Kraken
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,973
In my 40 gallon, I use a small but not fine coral sand (not purchased live - I will never do sugar fine again - have some in a reef tank, cloggs up everything and bothers some of the corals when it gets disrupted during cleaning). The front of the tank has 1-1.5 inches wide of 6 inch depth sand the rest of the bottom is only about 1-1.5 inches deep and covers a DYI resembelence of a UG. The under gravel plate is not for filtration but houses a filterbag covered intake for the powerhead. Normally, my nitrate is tollerable but with the babies (and the feeding density), I am struggling to keep it down. HideNSeek used to bury, or at least dig under the LR and sleep in the sand bed without skin issues.

Sisty and Medusa's smaller, 15 gallon tank has the same sand but only about an inch deep. Nitrates are never a problem but they do get a higher percentage water change since there is no sump. Neither of them dig but again, no skin problems.

Two of my non-ceph tanks have a large, almost pebble substrate that collects everything, is hard to clean, propetuates nitrate and grows algae, another substrate I will never use again.

My 4' tall x 1' diameter has golf ball to fist size LR loosely piled on the tank floor. The tank empties from the bottom and has a water movement pump low in the tank since the substrate can't be cleaned. This works well but my other half won't let me try it in a more normal tank for esthetic reasons :hmm:
 
Joined
Feb 18, 2005
Messages
722
Thales;105879 said:
Hijack alert! There is often sand near corals in a real reef setting. I think the idea of a natural looking tank with sand isn't that it actually looks more natural, rather it is what we have come to expect to see at the bottom of aquariums. :biggrin2:

Yes, it does look better with sand. Ideally, for tank design I prefer barebottom, but that is less natural than just sand.
 

SandV

Wonderpus
Registered
Joined
Oct 16, 2007
Messages
220
We use fine sand (not sugar) it is a mix between Haitian black moon sand and aragalive black and white sand
we didn't have enough black sand for the larger tank because it used be in a smaller tank... so for this tank it was live to start with and then we add the only black sand we could find but it was live too...

the sand bed is 1 - 1.5 inches

we have just shells of hermits that have been eaten and then a few bigger shells and then Rigby's toys...

he doesn't really seem to be on the sand much... he is still pretty shy and just moves from rock to rock... but no problems...
 

Forum statistics

Threads
20,897
Messages
206,865
Members
8,474
Latest member
Thomasjedlicka

Monty Awards

TONMOCON IV (2011): Terri
TONMOCON V (2013): Jean
TONMOCON VI (2015): Taollan
TONMOCON VII (2018): ekocak


Top