Tropical Fish Forum
Tropical Fish Keeping Help and Advice => General Fishkeeping advice => Topic started by: finn on February 18, 2017, 01:33:23 AM
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I got some polystyrene packaging, and was considering making some cave decorations with it, if I use correct adhesive would this be safe in a tank?
:fishy1:
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I would think so as its often used under e.g. large rocks to protect the glass / spread out the weight.
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The polystyrene should be safe as Matt says. Make sure the glue is fish safe as well. I know cyanoacrylate glue is fish safe but I don't know if it can be used on polystyrene. And of course silicone sealant - without any anti-mould etc additives - is fish safe but again I don't know if it will work on polystyrene
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Thanx,. Was gonna try silicone, see if that works. :)
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Were you planning on leaving them the polystyrene colour or using a coating? This link shows how this kind of thing is usually done. Enjoy your project!
http://www.cichlid-forum.com/articles/diy_background.php
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Was considering coating it with black sand,(would have preferred grey). Any advice would be welcome,(as I think there's a good chance of a fail :-\). ;D
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I used silicone to coat my DIY PVC caves in 2-4 mm gravel. There are always bits falling off and because it begins curing quickly (and is so tacky the whole time) it was a case of doing a bit then waiting 24 hours to do the next bit. Three caves took around a couple of weeks so make sure you have an area you can put aside for that period. You definitely don't want to be moving it around as it makes a mess. Personally I found silicone very difficult to work with.