What did i do this time

[Fly Guy]

So stupid me........why i felt the need to put some rowaphos in my bb tank i dont know.

I only used a tablespoon of the stuff in a canister filter running maybe 80 gph. I rinsed the stuff AND performed a ten gallon water change when i first started the canister up by dumping straight out of the canister into 5 gallon buckets.......trying to make sure any dust that was going to come out was not introduced to the tank...........

the following symptom you see i can only tell on 4 out of 60+ corals.....it has affected the tips of about half of the tips on the attached photo........the ones closest to you are the ones i want you t o look at......

What to do??? I obviously shut the canister off..............

Is this a result of iron????

I only ran the stuff for about 30 hours before seeing this and shutting it off......

[ScruffyRubicon]

Wish I could help you on this one, but I am just getting into the acros. Haven't had much luck as of yet.

[Wiskey]

Could be iron related bleaching, it's hard to tell from the pic. There is a thread in the think tank right now on iron bleaching that you might want to check out.

Some people are able to run P04 removers in a BB tank, like ClockWork for instance, other people have had big problems, like you, trying it.

What I would do is feed allot right now, like constantly to keep nutreants up, and do some big water changes.

Whiskey

[tdwyatt]

How much did you dose into the tank, just a tablespoonful? and how did you administer the dose, via reactor or via a suspended sock in the tank?


Your system is bare bottomed, so the usual adsorption of some of the iron onto sand would not have occurred (although live rock should have caught it a bit). For now, it might just be coincidental, but keep in mind that this may not be iron toxicity, a few European aquarisats that were runnind very clean systems introduced Rowaphos and sucked out what little phosphate was available to the coral, resulting in bleaching at the tips. Very hard to determin if the bleaching is due to iron or to loss of phosphate, but post mortem, grind up the skeleton tips and test for iron... I don't think hobbyists level kits re sensitive enough, but it is worth a shot. Remember, the systems usually don't need any extra phosphates (heh, by ANY means under normal operating conditions), but super clean systems may be right on the edge of the Renfield ratios, your systems are new and have not had mch opportunity to accumulate phosphates...and they're bb if I remember correctly...


Stop the rowaphos for now, as the corals don't look too bad to me, so this may be just a kne-jerk reation. The only thing that really concerns me is how quickly this began to present itself... If it looks worse tomorrow, dump a little (30 to 60 ml) phytooplankton suspension into the tank (heh, a sure source of phosphate over time as the algae decompose.)

Why did you introduce rowaphos to start with, were you having algal blooms?


inquiring minds wanna know...

[Fly Guy]

Originally Posted by tdwyatt

How much did you dose into the tank, just a tablespoonful? and how did you administer the dose, via reactor or via a suspended sock in the tank?



Why did you introduce rowaphos to start with, were you having algal blooms?


inquiring minds wanna know...

i dosed it via a reactor and after rinsing through a coffee filter i also ran ten gallons through the reactor and dumped it performing a water change in the process..........tryin to make sure any dust didnt get into the system..........

WHY did i do it in the first place??? Becasue im an IDIOT!!! No algeal blooms......but I didnt like the color a couople of corals were turning and i thought i would run a touch of the stuff to see if it would do anything.........well it DID......it turned some of the tips of OTHER corals silver.........

[Leonardo's Reef]

Hmm strange, I use one coffeecup a month with Iron-based PO4 remover... Rinse it out in some water first. It is used in a small filter inside the sump with a flow rate of about 75 G/hour.

I haven't got algea either. Just use it as a safety net.

I have no idea that Rowaphos can do this in the way you used it (very carefully)

-Leonardo

[Fly Guy]

I would like to know if anyone else has ever had the "silver" tip bleachiung syndrome i mentiuon and show in this pic....

edit............the flesh is perfectly fine on those silver parts......the other corals i mentioned had it show no symptoms anymore.......the coral i pictured in this thread actually got worse...every one of those purple tips now has a silver tip just like the few you can see in that pic.........flesh is fine...it just turned silver.........WEIRD

[Spanky]

I haven't, but I have never used a P remover.

I do remember some long conversations about this same thing happening to other people though. Another place it was happening was in those long Zeofit threads.

[Spanky]

BTW

[Fly Guy]

Originally Posted by Spanky

BTW

LOL...thank you sir, may i have another