changing

Hello, I am just wondering if this is normal... I have a Black Longspine Urchin and it has been doing pretty good in my tank for about 4 months now, but it has been recently either growing or changing colors of its spines. The long ones in the middle have in the past been pure black, but...

Hello everyone. I have a 29 gallon Coralife Biocube with 25 pounds of LR and 25 pounds of LS.. I have been doing a 5 gallon water change every 2 weeks, but am considering changing that to a 5 gallon water change once a week.. Any thoughts? Thanks!

:mad: Im in the middle of changing to a bigger and non bowfront aquarium, Ive gotten all the fish, coral, and rock out and no where can i find my pistol shrimp or goby!!!! Now the water theyre in is terrible because ive spent all this sifting the sand looking for them... Any help on getting them...

i currently have a fx5 on my 120g reef and im looking into swapping it out for a sump. i currently have a 29g just sitting there unused and i was wondering if this would be large enough for my tank. also, any advice or ideas on what equipment i will also need would be greatly appreciated. thanks

55g tank 48 pc light 225 super skimmer some random water filter 200w heater A few months ago I bought some live rock and put it in my tank. I think I had about 20 lbs of normal live rock and 20 of base rock. I did not know till 2 days into my tank, that I am suppose to keep the lights off. I...

I have several small starfish in my tank, they were hitchikers on some live rock I bought, none of them larger than about 1/4" across. I have recently started with a few soft corals & began dosing calcium, iodine, strontium & molybdenum a few weeks ago. The starfish were previously something...

I have a fluval 205 for a 29 gallon aquarium. I was wondering how often am i supposed to change out the bags of carbon that are in it. There are 2 bags of carbon in there. Also the fluval has these white rings that are another filtration device and i was wondering how often am i suppose to put...