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Has anyone ever seen anything like this? There is this yellow stringy stuff coming out from underneath. Is it rotting?

I have a koralia wavemaker in my 55 gallon reef and the suction cups keep coming unstuck from the glass. This is about to drive me nuts! I'll come back to the aquarium with the wavemaker pointing straight down at the bare bottom and sand swirling everywhere and getting all over my corals. This...

I bought these two ocellarus clowns over a year ago, and they seem to just keep getting darker. I have two tomato clowns in my other tank that keep getting darker too. I feed the ocellarus flake, but the tomato clowns get a variety (brine, mysis, finely chopped squid, mussels, shrimp, garlic...

First off, my tank (55 gallon) parameters are good: pH = 8.2 Ammonia = 0 Nitrite = 0 Nitrate = 0 S.G. = 1.022 Good oxygen levels due to my wavemaker causing surface agitation and egg crate top for gas exchange, as well as 20 gallon refugium with a huge mass of cheatomorpha. My inhabitants...

I am currently in the process, and so far successful, of culturing live phytoplankton. Next, I would like to culture some copepods as well. Would the best thing to be to buy some copepods and introduce them to one of my bottles of phytoplankton? Is there a specific salinity or density of phyto...

Is it diatoms? If so, what causes them and how do I eliminate them?

So I've got a fluorescent light diffuser cut to fit the top of my aquarium to keep everyone in. Does the diffuser weaken my lighting?

I bought a handful of chaeto last week from my LFS and it had (and still has) reddish patches that are soft all over it. I have it in my refugium and it gets 75w 12 hours a night, but I wonder if it's healthy. Does anyone have a lot of experience with chaeto?

Just a few questions about copepods for anyone with experience with them: 1. Do they molt? I've got a refugium with pods and occasionally I'll see what looks like a molted copepod shell floating around my display. Maybe a dead one? 2. What do they eat? I know when they're small they feed on...

I have two rocks with small colonies of zoanthids and I want to condense them all to one rock. How can I remove them and readhere them to the other rock?

He's in a rock that I could easily remove from the tank without disturbing too much, but then what? I don't want to destroy the rock, so what can I do?

Couple of questions: 1. If the copepods are going out through the overflow and into my sump, are they being killed by the pump impellar when they are being pumped back into the tank? 2. When I feed the water column phytoplankton, will the floss or sponge in my filter remove it?

I wish I could get a good pic of her, but she's got a little spec on her side, middle top, that is the shape of a tiny grain of rice. I can tell it bothers her, but I don't see where ich would have come from for I haven't introduced anything new to the tank for about six weeks and no fish for...