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few months back i ordered a big clean up crew and after a few weeks all i saw was empty shells,i have a large fire shrimp that he wont mess with but the othe day i saw him turning snail and crabs oner and eating them!!!Yesterday i put a large cleaner shrimp in and only lasted a few...

Hello whats the difference in electronic and magnetic ballast?

i have a chance to buy this set up 48" 2x250w plus t-5 54w ocean light combo,with 3 month xm bulbs and 3 week old t-5 bulbs with two never used t-5 .500$ anyone ever had this lighting setup?any good?

i got my unit from filter guys and everything was fine,my problem is my psi is at 20 i was told to be around 50.Second question what happens if i run my ro for an hour and shut it off,does the water in the filter go bad if i let it sit for a day or two

Just got my ro unit from filter guys and everything is great on filter guys my problem is the psi is at 22.And what happens if i run my unit for an hour and then turn the water off?Does it affect the water in the filter if it sits?Thanks

I only need about 20gl of water a week,i was looking online and wanted to know if anyone has this model or if i should go with a different unit? Ocean wave five stage 75gpd RO/DI 135$

I was wondering how big your tank,how it's stocked and how much 2 part your dosing? I have a 50g reef,lps,zoos,6 rbtas and a few sps.I do 5gl water change weekly and dose twice a week,but i cant get my levels up. It says to add 10 ml per 50g,now i read on a diff. thread about adding more than...

Can someone tell me why my water changes look like the salt hasn't mixed,and i get a white film inside the bucket.After evey water change i see the film i soak my powerhead and heater(they both are covered in the film)with vinegar and ro water.Sometimes it happens and sometimes its fine????

i was about to do a water change and checked my display tank and Ca was 350 and Mg was 1200 ph 7.89(just turned lights on).now my question,i ran out of my Alk test kit and was wondering if Ca and Mg low does this mean my alk could be high?

how long does everyone wait to test parameters after water change?

when i turn the syringe upside and im reading in ml's its at 0.70 what is my reading in kh value in dkh

i have a 50 gl with a hydor korali 2 and3 is that enough flow

for some reason my ph wont stay up and i i've been adding buffer almost every other day would this cause my Ca and Alk to drop? tank has been up over two years, what can i use to keep my ph up without adding a buffer?

sorry for huge pics

Hello im gonna order a new reflector and bulb and need your help.I have a 250w magnectic ballast HQI DE.And if you like post a pic !!!Thanks

my current tank seems to be leaking from the bottom,i have salt creep on the bottom and i dont see any drip marks on the glass and i top of every day and my water line lowers by the day salinity is in check,now i want to switch how should i do this if i use all established rock and sand from old...