I'm worried about my clown loaches.... Planted 130g tank specifics in sig what's the best way to treat?!?! I have a big bottle of nox-ich it contains sodium chloride 0.50% and malachite green 0.50%
For the record I've never had a loach in any of many tanks. I just read:
"Clown loaches['...] natural water conditions are warm (high 70s to low 80s Fahrenheit) and fairly soft, with a pH from 6.5 to 7.5 (at times, the pH can be outside these values)." ( fishchannel.com/freshwater-aquariums/species-info/clown-loach-care-tips.aspx )
Based on the above info we can infer that a pH of 6 can be tolerated "at times". You don't mention what other fish (if any) are present, how many loaches you have, and if you'd be willing to move the loaches to another tank for treatment.
I maintain several tanks of peat treated rainwater with pH values <6. Ich, velvet, fin rot... none of them stand a chance in acidic water. I've taken Gourami home from LFS's with white spots growing on them, plunged them into my water and the Ich just seems to melt off.
There's not much of a profit margin in peat moss sales (last I looked it's not even available in LFS's), and rainwater, well no profit margin there either. Therefore we don't hear much about it as a treatment. But talk to an aquarist whose worked with Blackwater fish species, ask him/her about Ich. You'll get blank stares. Ich thrives in hard/alkaline water.
Now, 130g is a large tank. 130 gallons of rainwater is a lot of rain collected over weeks/months. If I wanted to save those loaches I'd pull them out and put them into a 20g Long. That's definitely doable. $20 for 20 gallons of distilled water and a few dollars more for a cubic foot of peat moss (which will last for months, you only need a few handfuls at a time) from a garden store... take photos of that Ich before you do this, so that you will remember what it looks like after you move your loaches.
1 more thing: Online forums (not necessarily this one) are chock full of arm chair experts who will tell you that rainwater is detrimental to fish. 1Rainwater 2is 3detrimental 4to 5fish. I just can't wrap my head around that, how absolutely absurd those 5 words are when used in 1 sentence.
They will talk about "remineralizing". Forgive their ignorance. They haven't read about peat/rainwater on their favorite website, and they can't buy it in their nearest LFS, so jaliberti must be an idiot.
Think outside the box, and best of luck with the loaches. Peace.