WTF is this stuff? https://i.imgur.com/DeIC0xv.png

Here's something that started growing.. I'm not sure what it is..hoping you guys can enlighten me :)

So my tanks been up for almost two months now but I haven't really added anything more than 2 "starter" fish and 4 emerald crabs (they came with some LR). About 2 weeks ago I added a UV sterilizer because the tank had a bad algae bloom. Since the algae has started to go away I've noticed some...

And should i be concerned?

My clown and goby do this sort of thing all the time in the video below. They never hurt each other. The clown always opens its mouth on the goby when they get close and she pushes the goby sometimes, but the goby doesn't mind it. It's so weird. One time the goby perched on the clown and they...

I have just found a few of these growing on and in crevices in my LR. Any ideas what it is or seen it before?? http://i.imgur.com/i5H9qs8.jpg

So lately I have been noticing that my zoas have been looking strange for the past couple of days. They are not opening up and spreading out like usual, but rather standing straight up narrow-like. Does anyone have any ideas what could be causing this? My parameters are all good. 0 amm, nitrates...

Okay so i found this little turd sitting on one of my rocks. It appears to be an anemone, because it wasn't there earlier :D. I've seen one before but it was in a crevice so I couldn't take a photo. I hope it's not bad 'cause i just got rid of majano anemones :dance:. Any input is appreciated...

so i have bee cycling my 90G + 20G sump for 3 weeks exactly today. i added 4ppm worth of ammonia from ace hardware ammonia. everything was going great. about a week ago my ammonia started to drop and 3 days ago it was hovering around 1ppm. my nitites and nitrates have been through the roof for a...

Hello all, I was having a good clean of my tank yesterday and decided to move a couple of rocks around. When I did I found this under a rock that has been in the system since I set it up about four months ago. Any ideas what it is? I have tried to do a bit of research on-line and, from what I...

Has anyone ever heard/seen these before!? Think it would be neat in an aquarium?

Hello guys I just have a quick question, my clown fish lays down in the sand very often but as soon as he see me he stand up and start swimming again, he eats every day and looks very healthy to me but as soon as I walk away from my tank he goes to the sand again its this normal? is he sick? my...

No idea what this is. Sorry for picture quality but it was the best I could do at the time.

I know it's probably a crazy idea, but since i work with aluminum it will be a lot cheaper. The idea is to build a 100;50;50 tank of aluminum just with the frontal display in 10mm glass. The interior of the tank will be completely sealed with vinyl and silicone so there is no interaction between...

Like the title states i have this weird film across the top on my tank. Water paris are all normal 0-0-0. i don't not have a skimmer just running a canister filter. All layers have been washed many times before i even ran the filter. All i have in it is carbon,bio balls and filter floss and...

one of the clownfish wich i think is the female since is the bigger always wants to swim close to the fire fish that i have as if she wants to pair with it or something and at the same time it ignores the smaller clown fish. and bullies him to stay away on the top back side of the tank. i know...

can some one explain to me what exactly is happening here, this is my first hammer coral and ive had it for like teo months now, he seems.to be doing well and he is growing alot, but im not sure what this bubble is, its split already and it didnt quite do it like that last time, also this bushy...

I just noticed a weird spongey looking grey matter on bottom of live rock it kinda looks to be very light purple with black spots...does anyone know what this may be? Sponge perhaps? Tried posting pic but cant all I have is internet from phone

Hi all, So I have a bit of an emergency on my hands. I've had two true percula clown fish for about 6 months, and they went through their initial dominance phase. But today I noticed the smaller one (presumably male) looked like he went through a food processor. His fins were all chewed and he...

ok so i have had my tank setup for about 9 months now and i just noticed something new. i have a rock that has a big hole in it that curves to the right. and in the hole (on the right side so i cant see the body) is the weird animal... from what i can see it has 7 thin "arms" like SUPER thin...