Clam Cage Experiment

FishTruck

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My history with clams is about three years before something goes wrong - my new goal is 5 years. I've managed to grow maximas and derasas to about 6 to 8 inches. When they croak, I can usually trace it to a sudden change in ALK or salinity and stupid mistake on my part. Possibly, inadequate lighting.

Here are two maxima clams, one has been in my tank for about one year, the other was at the LFS for 90 days and is now in my tank. I saw my Goldflake angel take a pretty good shot at one of them. Current PAR is just over 200 at 30 inches depth from Ecotech Radions.

I installed a clam enclosure that I made out of an old birdcage, cut down to size and coated with five coats of plasti-dip. I also mounted a Kessel 360 NE right above the clams. All of my fish are too fat to squeeze through the bars.

I'll leave this for a month and slowly crank up the kessel until the PAR is 400-500 (or as high as I can get it) over the clams...then do the following.
1. see if the clams spend more time with open mantels. They are still small and VERY reactive to anything that swims overhead.
2. pull the cage and see if the angel has learned to leave them alone
3. inspect my contraption for corrosion. Hopefully, the plasti-dip will hold up long term.

I am going to break this tank down in about four months - ultimately we shall see if there is a way to keep both the angels and the clams. The kids want to put "easter eggs" in the new tank - funny little scenes here and there. I think a "clam zoo" might be kind of entertaining.


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SW has the ability to find the tiniest exposed piece of metal (like a sewing needle pinhole) then corrode it and then keep going deeper....with the backend leeching metal deposits

I'd visually inspect the cage monthly with a magnifying glass


.
 
SW has the ability to find the tiniest exposed piece of metal (like a sewing needle pinhole) then corrode it and then keep going deeper....with the backend leeching metal deposits

I'd visually inspect the cage monthly with a magnifying glass


.

Yep, I'll keep an eye one it. It's just galvanized metal, so it will rust fast if the coating fails. This is my cheapo prototype. I also get monthly ATI lab testing - and I can play close attention to the contaminants.

If this turns into a long term situation - I'd like to construct something better out of 316 stainless, fiberglass, or plastic. Keeping the bars thin to allow maximum light transmission and somehow making it look nice - or at least interesting. Open to suggestions!!!
 
Having the clams protected seems to have really helped, I am seeing the mantels open wide now. The plati-dip spray is not holding up, and flaking off the cage. The krylon fusion layer under that is holding up fine - and no signs of corrosion yet.

I think I'll try the original plasti dip, where you actually dip the metal in the product for a thicker coating.

I am also waiting on a bid to build something similar out of 316 stainless steel - but I think it is going to be pricey.
 
Acrylic is an option, or maybe fiberglass. It would block more light - but less to worry about. Trading in the angelfish is looking like a good option too.
 

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