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Annoying Algae Fixes?


DragonDiver

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sadly my 14 gallon has been attacked by GHA, and although I warned my dad to get some Cuc for it, he blew it off, of course there's a huge outbreak! So does anyone know of the best way to absolutely obliterate GHA? naturally would be better but Isuppose chemicals would work, also I have a moss like algae growing in my 8 gallon, it's dark green and doesn't really extend like GHA, I've googled it to no avail so I'm asking for your help. I will see if i can post some pics soon!

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Since its such a small tank, some natural remedies may be hard: normally I would just say toss some foxface in there and let them have at it! For a natural grazer try an urchin (relatively small one!) or 2, and sell them or pass them along when the job is done, since the tank may be a little small to sustain them long term. Do you have corals? If not, try reducing the photoperiod drastically. The fish will handle it fine (as it basically just mimics a natural "overcast" or thunderstorm day). Keep doing large water changes to get rid of the spores or any GHA that might be floating around loose. Also, a phosphate reactor may help! In addition, reduce feedings to the fishes, not drastically however, to try to reduce waste in the system (nitrates) that could be driving their growth!

Don't get frustrated, just stick with it, the GHA tends to stick around a while because of loose spores or particles that re-attach and keep colonizing.

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. . . Don't get frustrated, just stick with it . . .

+1 There are a lot of different approaches and sometimes several may have to be tried to find one that works for your tank. I am quite fond of urchins myself (Dr. Martin Moe has some fascinating research he did for NOAA which strongly suggested the decline of the caribean reefs can be directly related to the die off of the native Diadema sp. urchins from a bacterial plague in the early '80's). One thing I would do is pull all the affected rocks out and scrub off the GHA with a small brush/toothbrush (sounds tedious but it goes quicker than you think). Use a bucket of water from the tank so you minimize killing beneficial stuff. I would evaluate the rock to see it it's worth trying to save also. This gets rid of alot of the nutrients that have been fixed by the GHA so when you add herbivores you're not just processing it into fertilizer for more to grow. Definitely increase your water changes. Boyd's chemipure elite is a combination of carbon and ion exchange resins that kinda takes a shotgun approach but straight carbon and GFO is cheaper.

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Also, the lagea in your 8 gal might be a "turf" algae. They can be mistaken for GHA but are slower growing and courser, much more rigid than GHA. "Turf" algaes can be an issue like Valonia sp. (bubble algae) as it can get into corals and gradually out compete the corals but the few times I've seen it it seems to stay in one place and not spread like GHA can.

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+1 to the rock scrubbing, I've been able to eliminate most of the gha in tanks by just doing this. Also getting some phosphate remover will help greatly. In my own tanks personally I have had nitrates not grow algae but if there was any phosphates the algae will start growing. Good luck!

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I've never personally tried phosban. I've found for my little tank gfo is awesome and lasts long enough fit new to continue to use it, but lanthanum chloride works better for my big tank (alot cheaper too). If you wanna try that method do your research on it first ;) there's a humongous thread on that topic on rc I think. Lately though I've been trying to grow algae in my algae trough to control nutrients instead of media and chemicals, so far so good! Not having too much luck getting a bunch of hair algae or turf algae, but the calurpa likes to grow quickly.

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What's you stocking?

In my experience, the only real meaningful way to get the nutrients and thus algae in control permanently is to reduce the bio load on the tank. Adding urchins and more CUC further increases the bio load on the tank. They can get rid of some algae, but the problem isn't gone, it's just masked and can often be worse since you just removed a nutrient removing method. You can use GFO and carbon and other methods, but they require continuous replacement. The real problem is that we all stock too much in our small tanks.

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Don't forget about your lights too. If they haven't been changed as recommended they can be drifting into the wrong spectrum and could not be helping your problem. I had GHA show up in my 120 pretty quickly after it got up and running. I was using some older bulbs i inherited and didn't think it would make that big of a difference. I added a turbo snail, changed the lights, and have been running phosphate media with a BRS reactor and it's nearly gone. I hope to start my refugium in the next month as well to help my nutrient export and grow some pods. Best of luck, manual removal is good to get you ahead of the curve too.

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