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First pics are little tiny red spiky things on my live rock. The next to are red blobs on my dry rock. Please tell me what this is. Yes I know it's hard to see

Just got an aquaticlife skimmer. Been running for about 10 hours. Is the waste water still supposed to be clear? When will it start collecting the brown stuff?

I ordered a CS50 off amazon but I cant use it because my plumbing isn't set up. I've heard the drain hose for CPR boxes doesn't fit on cs50. I don't know yet. Just in case, could someone recommend a drain hose. Thanks.

Still got brown diatoms. Right now it's only one arrow crab and one percula clownish correct me if I'm wrong. 26 pounds of rock. 21 pounds bought dry. Once I get my fishneedit fixture and suplllements I'm gonna just do LPS and polyps I'm new to reefs so i don't wanna make this too challenging.

I heard arrow crabs might become aggressive and eat crabs and shrimps is this true? I have a 29gallon reef and i wanted to know if my crab would attack porcelain crabs sallylightfoot crabs hermit crabs and harlequin and skunk cleaner shrimps and snails also:thanks:

Is this normal brown algae that will pass or is it corraline that will start changing color? it's the rock and sand on the bottom not the rocks on top.

I have heard Columbian sharks may be acclimated into saltwater. Is this true? Salinity about 1.025

Anyone know a cheap way to get rid of black brush algae? It's still in its early stages and i don't want to have to restart my whole tank like that last time it got out of control.

What is the minimum size tank for a Yellow Tang? I have a 29g and i really really really really want one.:nono: I have corals and live rock, and sand obviously :lol:

Will Lionfish kill my other fish?

im planning to build my own small cube aquarium over the summer. what is better glass or acrylic? Pros cons? which sealant? how thick should the glass or acrylic be? step by step instructions for building the aquarium would be nice.:fish2:

Can I coat driftwood with polyurethane so it will not alter the pH? If so, could you recommend a polyurethane that will not harm my fish or plants? Where can buy some cool driftwood? Now stones, what stones will not alter my pH, list of stones please? Where could I buy them? last question...

Are homemade co2 injectors supposed to do this?

I have recently discovered a white ball which seems to be covered with tentacles( only way I can describe it) I think It may be old food or some kind of fungus. Should i take it out? The pics are pretty good.

I feed my cory catfish algae wafers but it hardly touches it, and when it does, hes not very good at it. Any tips or solutions?

All my fish have died from ich so im starting all over agin, you know new gravel and water. Should i get new filter media that wasnt exposed to ich? Also what are the pros and cons of a UV sterilizer, is it really worth buying?

How big would the following fish get?: Red Belly Pacu Tiger Oscar Cichlid Blood Red Parrot Cichlid Black Convict Cihclid Tiger Barb

Can South American and African cichlids be put in the same tank 40 gallon together? Also, all my fish have recently died of ich. I am now starting over completely, im getting new gravel soon. I just took out all of the water today but i have very small gravel and alot of it is still on the...