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I just bought a Kole Tang yesterday and it's currently in quarantine. At some point within the last few hours, it has developed a dark splotch above its eye under its fin. I have attached a photo. Does anyone know what this could be or what I can do about it?

About a year ago, when I started my system, I received ample criticism for using 1.5" PVC on my return pump. Many experienced hobbyists told me that using the wider pipe would increase head pressure and actually lower the GPH of my return pump, thus 1" was preferable. I was also advised that...

I recently had an ich outbreak due to not quarantining a new Tomini Tang (I know, I'll do better from now on). I'm about to pull all the fish to quarantine for 8-10 weeks and treat with copper. Question that I can not find a straight answer on: should I pull my inverts and corals as well...

While working on my sump the other day I found two new lifeforms that have apparently sprout up, the first in my skimmer chamber / on my return nozzle and the other in my refugium and return chamber. The first looks like some type of crustacean and the other, well, I have no idea. I have...

Prior to this, my only experience is a 29 gallon freshwater community. Here are some photos of the setup I have been working on. It's a 75 gallon FOWLR setup with a sump refugium. I built the stand myself as my first diy. I drilled the tank for a retro-fit Herbie-style overflow. The first...

I just finished assembling my sump last night and today, I filled up the chambers to test for leaks. There is a slow leak from my refugium backwards into the bubble trap. When left, the bubble trap takes a while to fill up, and even then, doesn't fill up to the edges. Do you think this is worth...

I am purchasing my first protein skimmer for a new 75g that I am currently in the process of setting up. I am stuck deciding between the Coralife Super Skimmer Needle Wheel 125 which is on sale for $135.99 here: Aquarium Protein Skimmers: Coralife Super Skimmer Needle Wheel Protein Skimmer I...

Does anyone know where I can find a guide for making a diy overflow box? I screwed up while drilling my tank and drilled the holes too low so using a standard internal overflow box, which usually have a length of 5", will probably leave 2"-2.5" of space between my water level and the bottom of...

I am in the process of designing a sump for a 75 gallon sw aquarium. I have a Marineland Emperor 280, that I replaced with a canister filter on my 29 gallon fw, and I was wondering if it would be feasible to integrate it into my sump for a bit of extra filtration or if doing so would just be a...

Can someone explain the purpose of drilling tanks for bulkheads? I know it has something to do with sumps but I'm having difficulty understanding the purpose of drilling to run output/input directly into the tank as opposed to running it over the back into the tank. Sent from my SM-N900V using...

So I'm making the jump from freshwater to saltwater aquaria and I've been doing a lot of research on sumps. There just seems to be a lot of different ways and types to go about it. I was watching a tutorial video on building a sump involving three chambers, one including live rock, one with a...

I've been using aquariumwiki.com but I was wondering if there is a better one that would help me gauge fish compatibility.

Hi, I've been working on a stocking list for my upcoming tank. I'm focusing exclusively on an Asian themed community tank. Right now I'm considering stoking Dwarf and Pearl gouramis along with tiger barbs and perhaps some loaches. Would those two gourmis work together? I've been getting mixed...

I'm trying again for a planted tank (probably for the last time if this one doesn't work out) I have a 29 gallon with currently no stock and no cycle. I have a 20w flora-glo light, a heater, an aquatop cf-400uv, and lots of hopes and dreams. Obviously, I'm going to establish the plants first...

I have a bottle of Prime that I have owned since Jan 2009. Is it still okay to use in my aquarium?

I've been seeing a lot about the AquaPlanner app for ios but does anyone know of any similar/good apps for the android? I already have the Aquarium advice app, I love it.

Questions regarding canister filter media I am considering getting the Aquatop CF-400UV for my new tank but I don't know much about canister filters as I have only ever owned HOB filters. Can someone give me some recommendations on what I should buy to fill it with (type of bio filtration...

Okay, I am finally starting the tank back up after almost three years of absence due to an outbreak of ick killing my entire stock :( Anyway, I have yet to begin my fishless cycle because I'm still trying to decide on a filter because I would like to upgrade from my Emperor 280 on my 29 gallon...

I've been out of the hobby for a couple of years after a disease from a new fish killed off all of my stock. I've been looking to get started back up again and I found an old 50 gallon hexagonal tall aquarium I had from high school that I got for a Christmas present which was intended as an...

It has been FOREVER since I have posted here. Two years ago, all of my fish died off from an ich epidemic and I have yet to regain the energy to restart my now-empty aquarium. Anyways, my point: I am moving into a new place May and I was seriously considering giving it another shot. There...

I have three gouramis, three pineapple swordtails, and two new clown loaches and I noticed this evening that one of the clowns has ich. I know there are a ton of ich questions on here but what else should I do besides raise the temperature of the water.

What does this mean? My ammonia is 0. My nitrite is 0. Do they climb the walls if the pH is too high because I've been having trouble keeping my pH down lately even though I bought some Seachem acid buffer. It doesn't seem to work for more than one day. I just changed the water two days ago. I...

I recently saw a gray bichir at WalMart labeled a "dinosaur eel". How ridiculously obvious is that manipulation on people who know nothing about fish and are enticed into buying an "eel" for the aquarium that they are probably purchasing on the same day! WalMart should NOT be allowed to sell...

My relationship is on the rocks and I think I may be out of here in a few days and I was wondering how I will move my 29 gallon aquarium with eight fish without killing the cycle. Anyone know?

So far, in my 29 gallon I have 2 blue gouramis, 2 moonlit gouramis, 3 swordtails, and 1 pictus catfish. Am I able to add anymore fish and if so what would go well with these?