Tough GHA Need Suggestions

[DHill6]

Update...removed and dremeled GHA. Decided to rescape, branch is drying in workshop since its getting rods, glue and finally marco cemented. How to restart this branch and avoid the nasties...bucket of nsw and bacteria product then reseed with coraline or another route?

Tank update has been weekly wc's [always done 4g] after the initial 15g one when branch was removed, sock catching junk, Santa Monica Drop1.4 growing junk, wet skimming pulling junk. Not dosing Vibrant or anything else, had cyano for a bit. Turned lighting whites, red, green down, it was 24% from A+B pogram, it's now a lot lower. Corals looking better. No sand, it was always BB. Feeding LRS frenzy to clown and reef, small piece only, TDO pellet to mandarin and his occasional surprise snack of 6,000 tisbe pods. Smell is improved over the GHA laden branch, water smell.

 

[DHill6]

Your No3 & Po4 are reading low because the algae is using it as a food source. What are you doing to export nutrients. The least expensive way to do it is with an ATS. You can build one very inexpensively. See my DIY ATS thread for a few ideas.
Pour a little hydrogen peroxide over the rocks will kill it short term. It will return unless you export enough nutrients.

Skimmer, Santa Monica Drop 1.4, mesh sock changed every 3 days.

 

[DHill6]

Up your mag to 1500 for about two weeks. I used Kent Tech M (it might have other ingredients that had the effect) and in 10 days GHA literally dissolved.

Mg runs 1500 - 1550, TM Pro salt

 

[Polyp Punk]

What about a buttload of emerald crabs [emoji886]? lol

 

[laverda]

Skimmer, Santa Monica Drop 1.4, mesh sock changed every 3 days.

Is your ATS producing much algae? I would increase your light schedule on it to get more algae growing there instead of your tank. I know it make a big difference on my nutrient levels when I do.

 

[DHill6]

It’s been running a couple months, fairly new. Cleaned it last night, green and gold algae, it’s picked up since I increased the light schedule. Thanks for the reply

 

[Chris Shelton]

Is your ATS producing much algae? I would increase your light schedule on it to get more algae growing there instead of your tank. I know it make a big difference on my nutrient levels when I do.

I'm battling GHA as well and I know the N03 and P04 reading 0 is being eaten up. I have a fuge with Chaeto growing well. H380 on 12 hr cycle. DT lights on 9 hours. No whites, red's or greens. Feeding fish Rods original daily. No corals yet. Why the fuge out compete the GHA in the DT? Thanks

 

[blitzkragz]

I recently went through the GHA ugly stage and watched two creatures that I added demolish it: A starry blenny would perch next to GHA, rear up its head and take huge chomps out of it, all day long. And blue leg crabs took care of the rest. Also I think Nerite snails helped but they only really come out at night.