In tank - silcone or caulk?

immortl · 07/07/2019, 06:15 PM

I have an 8ish year old Bio Cube 29. I am getting a little seepage in the front top right corner where the top trim is. The water/salt runs down the outside of the glass.

Open to suggestions, but my current thought is to drop the water level for a few days, and lay down a bead of caulk or silicone inside the tank up against the top trim and glass in the area where seepage is coming from.

Questions:
1. Is there a preferred/recommended caulk or silicone?
2. Planning on dropping tank level so the area is above the water line while curing, but what are the risks/potential impact if new/uncured caulk/silicone was to get into the tank water?

Thanks,
Joe

Vinny Kreyling · 07/07/2019, 06:31 PM

Your local store should have a small tube of aquarium safe silicone in black.

mcgyvr · 07/07/2019, 07:35 PM

GE type 1 100% silicone is easily available...momentive rtv100 series is better if you can find it..
Bead thickness will dictate cure time which may be 48 hours to a week or more

Sadly only a partial drain isnt optimal but may work..
Give it a try..If not replacing the tank may be something you need to do..

nereefpat · 07/08/2019, 11:05 AM

Maybe this goes without saying...

Make sure you aren't just seeing salt creep.

immortl · 07/08/2019, 01:40 PM

Agreed, I am sure I am not just seeing salt creep. There is a bit of water, albeit quite small, seeping out from under the top rim trim. It's quite minor, but runs down the side each day.

Thanks all for the suggestions and feedback, I appreciate it.

Thanks,
Joe

brody83 · 07/10/2019, 11:57 PM

GE SCS1200 is a strong silicone sealant also.

07/07/2019, 06:15 PM	#1
immortl Registered Member Join Date: Jan 2012 Posts: 114	In tank - silcone or caulk? I have an 8ish year old Bio Cube 29. I am getting a little seepage in the front top right corner where the top trim is. The water/salt runs down the outside of the glass. Open to suggestions, but my current thought is to drop the water level for a few days, and lay down a bead of caulk or silicone inside the tank up against the top trim and glass in the area where seepage is coming from. Questions: 1. Is there a preferred/recommended caulk or silicone? 2. Planning on dropping tank level so the area is above the water line while curing, but what are the risks/potential impact if new/uncured caulk/silicone was to get into the tank water? Thanks, Joe

07/07/2019, 06:31 PM	#2
Vinny Kreyling Registered Member Join Date: Nov 2002 Location: Miller Place, NY Posts: 7,206	Your local store should have a small tube of aquarium safe silicone in black. __________________ 250 gallon mixed reef, 2 Reefbreeder's Photon V 2, Deepwater BLDC 12, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps.

07/07/2019, 07:35 PM	#3
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	GE type 1 100% silicone is easily available...momentive rtv100 series is better if you can find it.. Bead thickness will dictate cure time which may be 48 hours to a week or more Sadly only a partial drain isnt optimal but may work.. Give it a try..If not replacing the tank may be something you need to do.. __________________ Who me?

07/08/2019, 11:05 AM	#4
nereefpat Registered Member Join Date: Apr 2016 Location: Central Nebraska Posts: 3,190	Maybe this goes without saying... Make sure you aren't just seeing salt creep. __________________ Pat Current Tank Info: 125 in-wall , 40b sump. 6 bulb T5. ASM G2 skimmer. LPS and leathers

07/08/2019, 01:40 PM	#5
immortl Registered Member Join Date: Jan 2012 Posts: 114	Agreed, I am sure I am not just seeing salt creep. There is a bit of water, albeit quite small, seeping out from under the top rim trim. It's quite minor, but runs down the side each day. Thanks all for the suggestions and feedback, I appreciate it. Thanks, Joe

07/10/2019, 11:57 PM	#6
brody83 Registered Member Join Date: Nov 2017 Posts: 28	GE SCS1200 is a strong silicone sealant also.