How much current can little corals take?

[laniloo]

I'm curious about how sturdy coral is, when it comes to current. I realize that the ocean has some pretty hefty currents and that doesn't seem to hurt the coral, but in a tank - if it's constantly being hit by the same stream of current, does that do any long term damage? Do they prefer to be less agitated?

Thanks

[fijiwigi]

Ok I am still new at this and still a Coral virgin myself but I thought I might take a stab at the question with my thoughts on the subject

All corals have different requierments as far as what flow they like. You may just have to do some research. They need the water flow to get the beneficial nutrients from the elements in the salt water. Your goal is to create a random chaotic current so that the current is not just flowing one direction leaving stagnant areas(little flow little nutrients)Too much flow may cause it to close up as a defense depending on the coral. This is usually done by pointing a powerhead at the glass or at a rock or by pointing 2 powerheads together. In such a small tank the flow should bounce off of the walls pretty good with even 1 small powerhead.

I am very interested about your setup do you think maybe we could see a photo to get a better mental picture??

[laniloo]

Yep - that's definitely on my list of to-do's. I know it's hard to give advice without seeing the setup.

Thank you for your comments though - I'll do some more research on the particular coral that is in my tank, and I'll try putting it somewhere where it's not getting blasted by the current (on one side).

[lando]

Corals and current vary greatly from animal to animal. If using your boxed tank as a reef, I doe recomment placing a second powerhead in the main tank to add a bit more flow and chaotic current. You will find areas of your tank with higher flow and some with lower flow. Coral placement will depend on the species and the amount of flow in a particular area of the tank. Don't worry...adding a second powerhead to the tank will not be overkill for just about any coral species. In fact, it will most certainly help the overall health of your future corals.

[laniloo]

Sounds like a good plan. Any suggestions on the type of powerhead I should get for a 14gallon biocube? Also, would the powerhead just be used for flow? Or should I put a filter (or lr rubble?) inside? Thanks so much!

[roka64]

I've never done a nano, but maybe a mini-jet? I know they make maxi-jets. I'm not sure how big a Hydor Koralia 1 is. But I like the flow of those.
Actually I just looked and they have a Koralia Nano .
You may want to wait to see if anyone has used the nano ones....

[laniloo]

Wow...those look really cool! Thanks for passing on the link

[roka64]

Sure thing, here are some Mini-jet water pumps .

[Devilishturtles]

Just wanted to add something I learned the hard way.

Make sure you buy some sort of epoxy to hold your corals down. They don't take too well to being dropped on the sand by water current.

I have aqua-clear power heads and really like them. They aren't the smallest though.

[laniloo]

Good idea! Fortunately my little coral came attached to a rock, so it's been easy to keep it in place, but I'll keep that in mind for when I add more coral