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im in the process of planning an nps/filter feeder tank, and the part im currently stuck on is choosing display tank size. the "bigger is better" rule may not be entirely true in a nps system, so id like to figure out what the general feeding and maintenance costs are so i can choose the largest...

does that work? ive read from several sources it needs to be coarse throughout

the problem i have with this is that you have to use coarse sand, which i hate the look of...that may be a deal breaker

i dont understand how this system removes detritus and phosphate buildup within the sand bed. and is it really "maintenance free"? i like the idea but want to hear stories of ppl who have had this system running for several years

interesting, especially considering the aquascape i want has minimal live rock. have you heard any other opinions on this method. im thinking of a 4x2.5x2.5 tank but its not set in stone

I'm planning on building a new system soon which will inhabit several nps corals and filter feeders. I cant decide on a deep or shallow sand bed. Ive read that a dsb can be a food source but ive also read they can become phosphate saturated over time and can become a problem. do i go with a...

probably with as short a photoperiod as possible since the sharks are partially nocturnal

i think they do need alot if light i would go with leds for that

so ive become interested in keeping catsharks but have found issues on the warm water species. 1st issue is most get to be over 3' and 2nd issue is the expense of keeping a 500g aquarium warm. so i began thinking about subtropical catsharks. many species dont get bigger than 2' and prefer...

no fish or coral or rock will ever come in contact with the stirred up water. they will be in the sump while i completely empty the tank

is there anyway removing the sand bed can shock the system. no fish, corals or even live rock with come in contact with the agitated water everything will be in sump before completely emptying tank

im thinking about removing my dsb. it is about 5 years old and showing major signs of old tank syndrome. i feed 3x a week with weekly water changes but still have wall to wall algae and suffering corals. i blame this on the reading of .15 ppm phosphate i got from inside the sand bed (syringe)...

this should be a new thread..

im thinking about just siphoning out all my sand at once. all my live rock is in the sump all thats in the tank is a frag rack and corals/livestock. any thoughts or advice? i know ill lose all the good bacteria but i think at this point the dsb is doing more harm than good, plus i have so many...

ok i have an old hob filter i think ill use that with a bag of phosguard in it. off topic but what do you think about removing my sand bed sections at a time since thats where my problems are all steming from? im worried to touch it as its 5 years old and as i know full of phosphate

hmm im confused what is my best course of action? im only keeping this system for another 5 months to grow my corals while i build and cycle my new tank. i wouldn't mind the algae so much but it seems to be bothering my zoas.

the tank shows a reading of 0.03 because its full of algae, which is being fed by the 0.15 ppm reading i got from in the sand bed. at least thats my theory makes sense

what is with all the warnings i read of lowering alk and harming corals?

any suggestions on what type and how to run gfo? tank is about 5 years old, 25 gallon with 25 gallon sump, current live stock 1 6line wrasse, 2 serpent stars 1 cleaner shrimp, soft and lps corals, ecotech radion light, aquac remora hob skimmer, ro water, currently feeding brine shrimp3x per week...

so my tank has been having alot of issues over the past year. i think it has old tank syndrome. one of which is the wall to wall algae i have. i tested phosphate in the water column and got 0.03 ppm but i asumed that was because the algae is eating it up. so i stuck a syringe in the 3" sand bed...

also ill probably need a dsb for my next build for the jawfish i want. so i should just learn how to properly build and maintain one. seems many aquarists are pro dsb so they must work if done right

should i start siphoning out sand with every water change? or could that do more harm than good?

hmm i dont have an issue with that, but acid seems to be very prevalent

whats doc?

do corals or other inhabitants benefit from a dsb?