let me know what u how long i could go without upgrading tank. i have a 55 gallon brackish setup. I have an eheim canister filter. t5 light.....inside 6 mangroves....1 archerfish....2 knight gobies...1 green spotted puffer....1 mudskipper....and 1 snowflake moray eel....i wll throw a picture up soon, so let me know that u think